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H-902 Wireless Waterproof Radio Headphone for Swimming Coaching Underwater Live Audio

1.the transmitter:
Turn the Power Button to switch on or off the device.
Revolve the same button to turn up or down the volume by the guidance.
Push the Function Button to change the channel.
Plug in the microphone to enlarge the volume.

2.the receiver:
Push the Power Button for three seconds to switch on or off the device.
Push the Function button to change the channel.
You can change the volume to your need.
If anything went wrong, press the reset button and restart again.

1.Waterproof
2.Volume adjustable
3.Light weight and comfortable to wear
4.10 meters underwater, with a range of 150 meters
5.Crystal sound while not isolate the surrounding voice
6.Battery working 2 hours between charges

Receiver Sensitivity | -113dbm | Net Weight | 55g |
Input Sensitivity | ≤200mv | Power Supply Voltage | 3.7V DC |
Noise-Signal Ratio | ≥82dB | Cerficate | CE,IPX10 |
Recevice Distance | in 120-150m | Frequency | 60Hz-20KHz |
Waterproof | IPX10 | Battery work time | 2.5-3h |
Frequency | 60Hz-20KHz | Connector | usb |
FM | 76.8, 77.8, 78.8, 79.8, 80.81 , 82.8, 83.8 | ||

Swimming class;
Paralympic swimming
Diving
Underwater exploration:
Surfing
Underwater ballet
Sailing




-- It takes 2h to fully charge the device and can be used 2h continuously.
-- FM 76.8, 77.8, 78.8, 79.8, 80.81 , 82.8, 83.8
-- FM transmitter can work with many headset, no limit.
-- Each Coach and their students can choose one frequency, make coach and students are in one line, so that coach can talk with students, no interference.
-- Sure, we accept sample order.
-- Alibaba trade assurance order is welcomed, you can place order on alibaba directly. We will send you payment link after we confirm the order. You can pay via T/T, E-checking, Credit card.
-- Yes, we accept paypal and western union. Please send inquiry or send email to us. We will send you pro-invoice with Payment details.
-- one year. Warranty range : Crash, can't charge the battery and assembly shedding. We don’t offer warranty : 1) Damage caused by external forces 2) Burned using a non-original factory charger. 3) The user has opened it himself 4) Long-term charging burnout
-- We can do customized logo and make customized package. MOQ: 200 headset.
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