my bone Conduction speaker

weight: 65g

 height 26 mm

diameter 40 mm

weight 65 grams

supports TWS real stereo sound

Efficacy chip: 20HZ~20KZ full-range output

Two-channel: 2 independent bone conduction transducers

Audio support: MP3/AC3/AAC/WAV and more 

magnetic charge

Charger : TYPE C interface

Built-in battery: with capacity 300 mAh

 play it at 80% volume for 2-3 hours, play at full volume for 1-1.5 hours