Exquisite design high-end texture The metal ear shell body design,multi-process and surface treatment process present excellent quality. lt is comfortable to wear Ergonomic design,stable and comfortable to wear. 0 adjustment Telescopic headband slicing adjustment HD sound quality 40mm large moving coil unit,the sound effect is more textured. BT V5.3 chip Using a new generation of BT 5.3 chip low latency,faster and more stable. Long battery life Multiple playback modes Support BT,TF Card,AUX playback modes. 1, Bluetooth 5.3; Chip: JLAC70062. Battery capacity: 400mAh, charging for about 2 hours3. Use time: 40 hours; standby 200 hours4. Size: 193*170*76mm; Weight: 193g5. Support Bluetooth, AUX, TF card mode6. Support Chinese and English prompts: double-click the M key in unpaired state