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Bluetooth Stereo Headset, Waterproof, Bluetooth 4.0, Noise Reduction Sports Earphone; OEM orders are welcome.• Product Feature:
• Bluetooth Version: V4.1
• Operating distance: 10-15m
• Battery: 70mAh/3.7V
• Standby time: =1120hrs
• Playing time: up to 4hrs
Headset Specification:
• Speaker diameter: ?10mm
• Impedance: 16O
• S.P.L: 111±3dB/1KHz
• Rated power: 3mW
• Frequency Response:
• 20Hz-20KHz
Mic Specification:
• Microphone Unit: ?4*1.5mm
• Directivity: Omnidirectional
• S.P.L: -42±3dB
• Impedance: =2.2kO
• Frequency Response: 100Hz-10KHz
• Operating voltage: 2V
