LN-BT02 Stereo Smart 4.0 Bluetooth Audio Receiver Module Feature: Bluetooth stereo dual speakers，pairing with a Bluetooth phone or computer，can wirelessly listen to music，but also as a wireless phone hands-free calling. Supported operating volume up\/down and play \/ pause. Bluetooth devices after successful connection，when again open the Bluetooth will automatically connect . Product design parts layout， smart stereo Bluetooth receiver. Bluetooth core using high quality chips， built-in enhanced signal transmission circuit.Bluetooth receiver stable， built ANC echo cancellation and AEC noise cancellation circuit. Handsfree no echo and noise.
Technical Reference: Bluetooth specification: Bluetooth V4.0 + EDR Transmission power: CLASS2 Bluetooth protocol: HFP V1.5 A2DP (1.1)， AVCRP1.3 Hands-free agreement: 1.6 Transmission distance: 15M Power supply voltage: 3.6-30V Frequency response: 80Hz-22KHz SNR: !#!amp!*!gt;80dB Output power: !#!amp!*!gt;600mV Stereo separation level:!#!amp!*!gt; 50dB Channel balance: !#!amp!*!lt;2dB Package included: 1 x LN-BT02 Stereo Smart 4.0 Bluetooth Audio Receiver Module