Bluetooth audio solutions offer, Bluetooth module, Bluetooth stereo PCBA welcome to inquire procurement: TEL: 15014134861 Luo 'R QQ: 1322725314 1. Function: Bluetooth + TF card + LINE IN + MIC + voice + radio (optional) 2. Jianrong program 6685 3. Power: 2 X 3 W 4. Parameters: Distance 10M 5. sound tough, strong, rich bass, clear treble Specifications: Bluetooth version Bluetooth V2.1 + EDR modulation PSK 3Mbps, π / 4-DQPSK and 8DPSK support HFP / HSP, OPP, A2DP / AVRCP, PBAP profiles sensitivity (0.1% BER) -90dBm transmission power class2 and class3 satisfy transmit power requirements, the largest provider of + transmit power supply voltage of 3.2V ~ 4.2V power 9dbm current work properly current 45mA, 32mA when playback is paused separation 50dB SNR 70dB Operating temperature -20 ~ +50 ℃