5ohm Charge time: 2 hours Speaker sensitivity:

20Hz~20KHz

Speaker impedance: 8

Sweat/Water resistance: IP55 Chip: QCC3024

145 mAh Wireless range:

OPENMOVE (Refurbished) Color:Elevation Blue 5ohm Charge time: 2 hoursSPECS Model Number: S661 Frequency response: 20Hz 20kHz Bone conduction technology: 7th generation of Bone Conduction Technology Sweat Water resistance: IP55 Chip: QCC3024 Weight: 29g Bluetooth version: Bluetooth v5. 0 Battery: Rechargeable Li Polymer battery Compatible profiles: HSP, HFP, A2DP, AVRCP Battery capacity: 135 mAh Frequency band: 2402 2480MHz Continuous play: Up to 6 hours Maximum RF output power: 4dBm Standby time: Up to 10 days Wireless