คุณสมบัติสินค้า Speaker type: bone conduction transducers Frequency response: 20Hz~20KHz Bluetooth version: v.4.1 Compatible profiles: A2DP, AVRCP, HSP, HFP Wireless range: 33 ft (10m) Battery: rechargeable lithium ionContinuous play: 6 hours
Standby time: 10 days Charge in: 1.5 hours
