1. Support Bluetooth protocol: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap \gatt\rfcomm\sdp\l2cap profile
2. Bluetooth 5.3 chip, stable and continuous connection, master-slave switching, support any single ear use
3. Handle-shaped in-ear mini headphones, more invisible
4. Digital display function, keep abreast of power dynamics, bid farewell to battery anxiety
5. Built-in ENC algorithm noise reduction, high-definition calls, noise reduction and anti-interference
6. Curved compact model, easy to carry and store