Frequency: 18 Hz - 20 KHz Sensitivity: 116±3dB Impedance: 32 Ohm Bluetooth frequency: 2400Hz - 2483,5MHz Interface: Bluetooth 4.1 Microphone: Yes Remote control: Yes Noise reduction: CVC 6.0 Transmission distance: 10m Battery capacity: 250mAH Stand-by time: 100hrs Talk time/Play music: 3-5hrs Charging time: 2hrs Color: Red Material: Plastic
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