5W+5W PAM8406 Stereo Amplifier Board Pure Bluetooth 4.1 Audio Receiver Module with AEC/ANC Noise Elimination for Hand-free Call

Specifications: The Bluetooth specification: Bluetooth V3.0 + EDR Transmit power: CLASS2 Support bluetooth protocol: HFP V1.5 A2DP (1.1) AVCRP1.3, hands-free protocol (1.6) Transmission distance, about 15 m (open) The power supply voltage: DC / 3.7 V to 4.2 V, Output power: 3 wx2 (4 speakers) 5 wx2 (horn) 2 Signal to noise ratio: 80 db or higher Frequency response: 120 hz - 19 KHZ The board size: 37.5 mmX31mmX1. 2 mm (including parts) Features: - Pure bluetooth stereo amplifier board 5 w x2 - Built-in enhancement signal circuit, steady bluetooth receiving distance, - Built-in AEC echo elimination and ANC noise elimination circuit, - Hands-free calls super static doesn't echo and noise. - Power amplifier IC made in U.S. Long Ding new efficient PAM8406 pure class D chip micro Function Characteristics: bluetooth stereo pairs of speakers, and bluetooth paired to the phone or computer, wirelessly to listen to music, and can be used as a wireless mobile phone hands-free calls, support and operation volume size, and the play/pause, back to the function, after successful connection device of bluetooth, pen the bluetooth will automatically connect again. Package Included: 1 x PAM8406 Bluetooth 4.1 5W+5W Audio Receiver Module Amplifier Board Hand-Free Call