| Brand | Xiantang |
| Model | M91-[2025] |
| Functionality | Call support, Ultra-long battery life, Music playback support |
| After-sales Service | Returns |
| Origin | Mainland China |
| Color Category | Glacial Purple [Limited Edition] IMAX Cinema-Grade Surround Sound ✅ 84h Real Battery Life ✅ Comfortable & Anti-Leakage ✅ ENC HD Call Noise Reduction; Starry Black [Limited Edition] IMAX Cinema-Grade Surround Sound ✅ 84h Real Battery Life ✅ Comfortable & Anti-Leakage ✅ ENC HD Call Noise Reduction; Nebula Warm [Limited Edition] IMAX Cinema-Grade Surround Sound ✅ 84h Real Battery Life ✅ Comfortable & Anti-Leakage ✅ ENC HD Call Noise Reduction; [Version Comparison] 90% of buyers choose the Limited Edition ★ Overall performance increased by 200%↑; Rosy Violet [Champion Edition] Berlin 720° Spatial Audio ◆ 64h Real Battery Life ◆ Comfortable & Anti-Leakage ◆ AI Call Noise Reduction; Starry Black [Champion Edition] Berlin 720° Spatial Audio ◆ 64h Real Battery Life ◆ Comfortable & Anti-Leakage ◆ AI Call Noise Reduction; Nebula Warm [Champion Edition] Berlin 720° Spatial Audio ◆ 64h Real Battery Life ◆ Comfortable & Anti-Leakage ◆ AI Call Noise Reduction; [Ready to Ship] Fast same-day shipment + Return shipping insurance gifted; [Favorite + Add to Cart] Not satisfied? Full refund guaranteed! ✅ 30-day free trial period; Color Category: Midnight Black | Ultra Edition [Officially Authorized AI Model ✅ Cinema-Grade IMAX Dolby Atmos ✅ 98H Battery Life ✅ Comfortable & Anti-Leakage ✅ AI HD Call Noise Reduction] |
| Waterproof Rating | IPX5 |
| Microphone Support | Microphone supported |
| Transmission Radius | 15m |
| Wired Control | Not supported |
| Ear Type | Binaural stereo |
| Launch Date | 2025-08-15 |
| Warranty Period | 12 months |
| Connection between ear caps | Wireless connection |
| Dust-proof Performance | IP5X |
| Connection Method | Bluetooth |
| Diaphragm Type | Dynamic |
| Charging Method | Charging case |
| Bluetooth Function | Supported |
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