Iwoo Wireless Bluetooth OEM Universal Stereo Headset Headphone Neckband Earbud , Pink
Charging voltage: DC5V 150mAhWorking current: 25-35mABluetooth A2DPWorking range: 10mOutput power: 35mWFrequency range: 2.401-2.480GHzDistortion factor: ≤1%Frequency response: 20Hz-20KHzWorking Time: Music/ HuaTong state 10 h SNR: S/N≥95Charging Time: 1h-2hTalk time: 8-15 hours, play time: 6-10 hoursMusic Playing Time: up to 10 hoursFrequency Response: 20 ~ 20000HzSensitivity: 80dBImpedance: 32 ohmspeaker Power: 2 x 18mWWeight: 118g