SPECS Part Number: AS800 Battery: lithium polymer battery Speaker type: Bone conduction transducer Continuous playback: Up to 8 hours Frequency response: 20Hz~20KHz Standby time: Up to 10 days Sensitivity: 105±3...

SPECS Part number AS700 Battery Lithium battery Speaker type Bone conduction Continuous play 8 hours Frequency response 20Hz~20KHz Battery capacity 183 mAh Sensitivity 93±3dB Charge time <2 hours Compatible profiles...

SPECS Part number: AS650 Battery: Rechargeable lithium ion Speaker type: Rechargeable lithium ion Continuous play: Up to 6 hours Frequency response: 20Hz~20KHz Standby time: Up to 20 days Sensitivity: 100...

SPECS Part number： AS600 Wireless range： 33 ft (10m) Speaker type： Compatible profiles Wireless range： Rechargeable lithium ion Frequency response： 20Hz〜20KHz  Continuous play : 6 hours Sensitivity： 100±3dB Standby time :...