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MFB Button — Power On/Off, Pair, Music Pause/Play LED Indicator USB Charging Jack Charging the Receiver The LED flashes red when the receiver is low battery. Please recharge the receiver. The LED keeps red while charging. It takes about 3 hours for a full charge. When the charging is completed, LED light will turn off.
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3-After connected successfully, the LED flashes blue once every 3 seconds. Noted: ◆ If no device connected with “Echo-RX01” within 20 minutes, the receiver will turn off automatically in order to save power. ◆ After successful pairing, the receiver and the mobile phone will remember each other, they will not need to be re-pair next time.