K11 Wireless Phone MicrophoneClip On Design Lightweight design Wireless High density anti spray sponge High sensitivity mic Quick response Excellent sound reception Convenient to wear No App needed Plug and play Wireless: 2. 4GHz Frequency response range: 20 30khz Compatibility: iPhone iPad Lightning port Frequency range: 10m Transmission delay: 9Ms Input voltage: DC4. 8~ 5. 4V Colour: Black Battery: 70mAh Charging time: 80min 360 degree Omni directional sound reception SNR: 64dB
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