Waterproof Wireless Aquatic Sports Earphones
H907 Magnetic Charging Long Range 200m 7 Channels Waterproof Wireless Aquatic Sports Volume Adjustable Bone Conduction Earphone
Product Description
The set is consist of a transmitter (for the coach) and several waterproof receivers (for swimmers).
1.The Transmitter: 7 channels, each channel can support up to 10 receivers at the same time has a range of about 150-200 m can be connected to a microphone. 2.The Receiver: The waterproof receiver fits under any kind of swimming cap and is designed to stay in position even during start and turns. The volume can be adjusted so it is totally child-friendly.
Product Usage
Receive Sensitivity：-13DBu Input Sensitivity：≤200mV SNR：≥82dB Distortion：≤0.7% Ferquency range：60Hz-20KHz Receive Distance：120-200Meters Input：DC 3.7V Working Voltage：2.8-4.2V Battery Working Time：4-6 hours Charge Time：2 hours Underwater：1 Meters Certificate：CE,IPX-8 FM：76.8, 77.8, 78.8, 79.8, 80.81 , 82.8, 83.8
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