Features: S-ingle playback time increase 40%, automatic pairing, anti-interference, 10 meters transmission. Double tap left earbud to activate low latency mode. There is almost no delay for games and videos and the sound and control are precisely matched. Dual-master earbuds. Mono and stereo mode, use one earbud or pick up both to enjoy your music world. 12mm large dynamic driver accurately adjust every detail to achieve a perfect balance of bass, midrange and treble. AAC audio decoding supports higher resolution while increasing resource compression rate, effectively capturing every sound detail. With ergonomic design, it offers wearing stability and comfort when in use. With compact design, you can easily carry the charging box in your pocket wherever you go. When the headset is fully c-harged, it can listen to music for 5.5 hours continuously, and it can be used for 20.5 hours with the charging box.