diff --git a/CHANGELOG.md b/CHANGELOG.md
index 13ff197..9b20510 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,15 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
 
 ---
 
+## [1.12.15] — 2026-06-28
+
+### Added
+- **Lang + Gender in Benchmark batch results** — two new sortable columns after Voice.
+- **Lang + Gender in voice selection list** — flag emoji and gender symbol shown on each voice row.
+- **Sortable batch results table** — click any column header to sort; arrow indicator shows active sort direction. Defaults to Factor descending (fastest first).
+
+---
+
 ## [1.12.14] — 2026-06-27
 
 ### Changed
diff --git a/static/index.html b/static/index.html
index 9c371bc..e21ebeb 100644
--- a/static/index.html
+++ b/static/index.html
@@ -26,7 +26,7 @@
 
   <!-- ── Core styles (local — no CDN dependency for first paint) ────────── -->
   <link rel="stylesheet" href="/static/vendor/mdi/materialdesignicons.min.css">
-  <link rel="stylesheet" href="/static/style.css?v=1.12.14">
+  <link rel="stylesheet" href="/static/style.css?v=1.12.15">
 
 
   <!-- ── Flag icons — non-blocking (loaded async, icons appear after JS) ── -->
@@ -336,7 +336,7 @@
 <script src="/static/vendor/wavesurfer-regions.min.js"></script>
 
 <!-- loader.js: fetches sections → loads JS modules → removes skeleton -->
-<script src="/static/loader.js?v=1.12.14"></script>
+<script src="/static/loader.js?v=1.12.15"></script>
 
 </body>
 </html>
diff --git a/static/js/benchmark.js b/static/js/benchmark.js
index 8706a19..0236648 100644
--- a/static/js/benchmark.js
+++ b/static/js/benchmark.js
@@ -25,6 +25,8 @@
   let batchResults = [];
   let batchVoices = [];
   let batchSelected = new Set();
+  let batchSortField = 'factor';
+  let batchSortDir   = -1; // -1 = desc (fastest first)
 
   function populateBatchBackends() {
     if (!batchBackendSel) return;
@@ -140,10 +142,17 @@
       const checked = batchSelected.has(v.id);
       const isActive = activeIds.has(v.id);
       const stats = batchVoiceStats(v);
+      const meta = v.meta || libraryVoice(v.id) || {};
+      const flag = meta.flag || '';
+      const lang = meta.lang || meta.language || '';
+      const genderMap = { M: '♂', F: '♀', N: '⚬' };
+      const gender = genderMap[meta.gender] || '';
+      const langGender = [flag || lang, gender].filter(Boolean).join(' ');
       return `<label class="batch-voice-item${isActive ? ' is-active' : ''}${checked ? ' is-selected' : ''}">
         <input type="checkbox" class="batch-voice-cb" value="${escHtml(v.id)}" aria-label="Benchmark ${escHtml(v.label || v.id)}"${checked ? ' checked' : ''}>
         ${batchAvatar(v)}
         <span class="batch-voice-main"><span class="batch-voice-name">${escHtml(v.label || v.id)}</span><span class="batch-voice-id">${escHtml(v.id)}</span></span>
+        ${langGender ? `<span class="batch-voice-meta">${escHtml(langGender)}</span>` : ''}
         ${stats ? `<span class="batch-voice-stats">${escHtml(stats)}</span>` : ''}
         ${isActive ? '<span class="batch-voice-tag">active</span>' : ''}
       </label>`;
@@ -219,27 +228,54 @@
     buildVoiceList(detail.voices || []);
   });
 
+  function batchSortValue(r, field) {
+    const factor = r.ok && r.avgRtf > 0 ? 1 / r.avgRtf : null;
+    switch (field) {
+      case 'voice':    return (r.voice || '').toLowerCase();
+      case 'lang':     return (r.flag || r.lang || '').toLowerCase();
+      case 'gender':   return (r.gender || '').toLowerCase();
+      case 'device':   return typeof backendComputeDevice === 'function' ? backendComputeDevice(r.backend || '').toLowerCase() : '';
+      case 'latency':  return r.ok ? r.avgLatency : 999999;
+      case 'best':     return r.ok ? r.minLatency : 999999;
+      case 'duration': return r.ok && r.avgAudio > 0 ? r.avgAudio : 999999;
+      case 'factor':   return factor != null ? factor : -1;
+      case 'time':     return r.ok ? r.avgLatency / 1000 : 999999;
+      case 'wpm':      return r.ok && r.avgAudio > 0 && r.wordCount > 0 ? Math.round(r.wordCount / (r.avgAudio / 60)) : -1;
+      default:         return 0;
+    }
+  }
+
   function renderBatchResults() {
     if (!batchResults.length) { batchResultsCard.style.display = 'none'; return; }
     batchResultsCard.style.display = '';
     const sorted = batchResults.slice().sort((a, b) => {
       if (a.ok && !b.ok) return -1;
       if (!a.ok && b.ok) return 1;
-      // sort by Factor descending (higher = faster); Factor = 1/avgRtf
-      return (b.avgRtf > 0 ? 1/b.avgRtf : 0) - (a.avgRtf > 0 ? 1/a.avgRtf : 0);
+      const av = batchSortValue(a, batchSortField), bv = batchSortValue(b, batchSortField);
+      return typeof av === 'string' ? av.localeCompare(bv) * batchSortDir : (av - bv) * batchSortDir;
     });
     const okCount = batchResults.filter(r => r.ok).length;
     if (batchResultsLabel) batchResultsLabel.textContent = `${okCount} / ${batchResults.length} voices — ${batchBackendSel.value}`;
+
+    // Update header sort indicators
+    document.querySelectorAll('#batch-table th[data-sort]').forEach(th => {
+      th.classList.remove('perf-sort-asc', 'perf-sort-desc');
+      if (th.dataset.sort === batchSortField) th.classList.add(batchSortDir === 1 ? 'perf-sort-asc' : 'perf-sort-desc');
+    });
+
     batchTbody.innerHTML = sorted.map(r => {
-      const factor   = r.ok && r.avgRtf > 0 ? 1 / r.avgRtf : null;
-      const timeSec  = r.ok && r.avgLatency > 0 ? r.avgLatency / 1000 : null;
-      const wpm      = r.ok && r.avgAudio > 0 && r.wordCount > 0 ? Math.round(r.wordCount / (r.avgAudio / 60)) : null;
+      const factor    = r.ok && r.avgRtf > 0 ? 1 / r.avgRtf : null;
+      const timeSec   = r.ok && r.avgLatency > 0 ? r.avgLatency / 1000 : null;
+      const wpm       = r.ok && r.avgAudio > 0 && r.wordCount > 0 ? Math.round(r.wordCount / (r.avgAudio / 60)) : null;
       const factorCls = factor == null ? '' : factor >= 1 ? 'perf-good' : 'perf-slow';
-      const trend    = r.trend ? `<span class="perf-trend-badge ${r.trend.cls}" style="font-size:11px;padding:1px 6px">${r.trend.label}</span>` : '';
-      const device   = typeof backendComputeDevice === 'function' ? backendComputeDevice(r.backend || batchBackendSel.value) : 'Unknown';
+      const trend     = r.trend ? `<span class="perf-trend-badge ${r.trend.cls}" style="font-size:11px;padding:1px 6px">${r.trend.label}</span>` : '';
+      const device    = typeof backendComputeDevice === 'function' ? backendComputeDevice(r.backend || batchBackendSel.value) : 'Unknown';
       const deviceCls = typeof backendComputeDeviceClass === 'function' ? backendComputeDeviceClass(r.backend || batchBackendSel.value) : '';
+      const genderMap = { M: '♂', F: '♀', N: '⚬' };
       return `<tr class="${r.ok ? '' : 'perf-row-error'}">
         <td>${escHtml(r.voice)}</td>
+        <td>${escHtml(r.flag || r.lang || '—')}</td>
+        <td>${escHtml(genderMap[r.gender] || '—')}</td>
         <td><span class="bench-device ${deviceCls}" title="Inferred from the selected TTS backend metadata">${escHtml(device)}</span></td>
         <td>${r.ok ? Math.round(r.avgLatency) + ' ms' : '—'}</td>
         <td>${r.ok ? r.minLatency + ' ms' : '—'}</td>
@@ -252,6 +288,16 @@
     }).join('');
   }
 
+  // Wire sortable headers
+  document.querySelector('#batch-table')?.addEventListener('click', e => {
+    const th = e.target.closest('th[data-sort]');
+    if (!th) return;
+    const field = th.dataset.sort;
+    if (field === batchSortField) batchSortDir *= -1;
+    else { batchSortField = field; batchSortDir = field === 'voice' || field === 'lang' || field === 'gender' ? 1 : -1; }
+    renderBatchResults();
+  });
+
   async function runBatchBenchmark() {
     const topBackend = $('perf-backend-select')?.value || '';
     if (topBackend && batchBackendSel && batchBackendSel.value !== topBackend) batchBackendSel.value = topBackend;
@@ -287,7 +333,9 @@
       batchProgCount.textContent = `${vi + 1} / ${selected.length}`;
       batchProgBar.style.width   = `${Math.round((vi / selected.length) * 100)}%`;
 
-      const entry = { voice, backend, ok: false, avgLatency: 0, minLatency: 0, avgRtf: 0, avgAudio: 0, wordCount: text ? text.trim().split(/\s+/).length : 0, error: '' };
+      const _vm = batchVoices.find(bv => bv.id === voice);
+      const _meta = _vm?.meta || libraryVoice(voice) || {};
+      const entry = { voice, backend, ok: false, avgLatency: 0, minLatency: 0, avgRtf: 0, avgAudio: 0, wordCount: text ? text.trim().split(/\s+/).length : 0, lang: _meta.lang || _meta.language || '', flag: _meta.flag || '', gender: _meta.gender || '', error: '' };
       const rowRunResults = [];
 
       for (let ri = 0; ri < runs; ri++) {
diff --git a/static/sections/s-performance.html b/static/sections/s-performance.html
index fab8195..df4d3b4 100644
--- a/static/sections/s-performance.html
+++ b/static/sections/s-performance.html
@@ -188,7 +188,17 @@
           <table class="perf-table" id="batch-table">
             <thead>
               <tr>
-                <th>Voice</th><th>Device</th><th title="Avg time to first audio chunk (ms)">Latency</th><th title="Best (fastest) run latency">Best</th><th title="Average synthesised audio duration in seconds">Duration</th><th title="audio ÷ render — higher is better; above 1.0× = faster than real-time">Factor</th><th title="Average total render time in seconds">Time</th><th title="Words per minute the voice speaks">WPM</th><th>Status</th>
+                <th data-sort="voice" class="perf-th-sort">Voice</th>
+                <th data-sort="lang" class="perf-th-sort">Lang</th>
+                <th data-sort="gender" class="perf-th-sort">Gender</th>
+                <th data-sort="device" class="perf-th-sort">Device</th>
+                <th data-sort="latency" class="perf-th-sort" title="Avg total render time (ms)">Latency</th>
+                <th data-sort="best" class="perf-th-sort" title="Fastest single run">Best</th>
+                <th data-sort="duration" class="perf-th-sort" title="Average synthesised audio duration">Duration</th>
+                <th data-sort="factor" class="perf-th-sort perf-sort-desc" title="audio ÷ render — higher is better; above 1.0× = faster than real-time">Factor</th>
+                <th data-sort="time" class="perf-th-sort" title="Average total render time in seconds">Time</th>
+                <th data-sort="wpm" class="perf-th-sort" title="Words per minute the voice speaks">WPM</th>
+                <th>Status</th>
               </tr>
             </thead>
             <tbody id="batch-tbody"></tbody>
diff --git a/static/style.css b/static/style.css
index 591c72a..e2ed8fd 100644
--- a/static/style.css
+++ b/static/style.css
@@ -2608,6 +2608,11 @@ code { background: var(--panel); border-radius: 4px; padding: 1px 5px; font-fami
 .perf-table { width: 100%; border-collapse: collapse; font-size: 13px; }
 .perf-table th, .perf-table td { padding: 7px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
 .perf-table th { color: var(--subtext); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
+.perf-th-sort { cursor: pointer; user-select: none; }
+.perf-th-sort:hover { color: var(--text); }
+.perf-th-sort::after { content: ' ⇅'; opacity: .35; font-size: 10px; }
+.perf-th-sort.perf-sort-asc::after  { content: ' ↑'; opacity: 1; color: var(--accent); }
+.perf-th-sort.perf-sort-desc::after { content: ' ↓'; opacity: 1; color: var(--accent); }
 .perf-row-error td { color: var(--subtext); }
 .perf-ok  { color: var(--green); font-weight: 600; }
 .perf-err { color: var(--red); }
@@ -2644,7 +2649,7 @@ code { background: var(--panel); border-radius: 4px; padding: 1px 5px; font-fami
 .batch-search-wrap { display: flex; align-items: center; gap: 7px; min-width: min(300px, 100%); flex: 1 1 260px; height: 34px; padding: 0 10px; border: 1px solid var(--border); border-radius: 7px; background: var(--panel); color: var(--subtext); }
 .batch-search-wrap input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font-size: 13px; }
 .batch-voice-list { display: flex; flex-direction: column; gap: 0; max-height: 320px; overflow-y: auto; border: 1px solid var(--border); border-radius: 7px; background: var(--panel); }
-.batch-voice-item { display: grid; grid-template-columns: auto auto minmax(0,1fr) auto auto; align-items: center; gap: 9px; padding: 7px 10px; cursor: pointer; font-size: 13px; border-bottom: 1px solid var(--border); transition: background .1s; }
+.batch-voice-item { display: grid; grid-template-columns: auto auto minmax(0,1fr) auto auto auto; align-items: center; gap: 9px; padding: 7px 10px; cursor: pointer; font-size: 13px; border-bottom: 1px solid var(--border); transition: background .1s; }
 .batch-voice-item:last-child { border-bottom: none; }
 .batch-voice-item:hover { background: var(--hover); }
 .batch-voice-item.is-selected { background: rgba(37,99,235,.08); }
@@ -2654,6 +2659,7 @@ code { background: var(--panel); border-radius: 4px; padding: 1px 5px; font-fami
 .batch-voice-name, .batch-voice-id { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
 .batch-voice-name { color: var(--text); font-weight: 600; }
 .batch-voice-id { color: var(--subtext); font-size: 11px; font-family: monospace; }
+.batch-voice-meta  { font-size: 11px; color: var(--subtext); white-space: nowrap; }
 .batch-voice-stats { font-size: 11px; color: var(--subtext); font-variant-numeric: tabular-nums; white-space: nowrap; }
 .batch-voice-tag  { font-size: 10px; padding: 1px 6px; border-radius: 10px; background: rgba(var(--accent-rgb,99,102,241),.15); color: var(--accent); font-weight: 600; white-space: nowrap; }
 @media (max-width: 700px) { .batch-voice-item { grid-template-columns: auto auto minmax(0,1fr); } .batch-voice-stats, .batch-voice-tag { grid-column: 3; justify-self: start; } }