One: Product Overview: SN-509-8670 Bluetooth module based company developed intelligent wireless audio data transmission products, low-cost high-efficiency stereo wireless transmission scheme, the module uses CSR BC8 chip module provides high-quality The sound quality and compatibility, more optimal overall performance. Free drive mode module, customers just need to block access to applications, you can quickly and easily implement wireless transmission of music, enjoy wireless music fun. II: Applications: This module is used to transfer music short distance, you can easily and notebook computers phone, PDA and other digital products connected to Bluetooth devices, wireless transmission of music. ◆ Bluetooth stereo Bluetooth stereo headset ◆ ◆ ◆ Bluetooth speakerphone Bluetooth wireless transmission of audio dialer ◆ ◆ ◆ Smart Home Medical Equipment III: basic characteristics: 1.Bluetooth Profiles ◆ Bluetooth v4.0 specification support ◆ HFP v1.6 ◆ HSP v1 .2 ◆ A2DP v1.2 ◆ AVRCP v1.4 ◆ Support for smartphone applications (apps) 2.Music Enhancements ◆ Configurable 5-band EQ for music playback (rock, pop, classical, jazz, dance etc) ◆ SBC, MP3, AAC and Faststream decoder ◆ Stereo widening (S3D) ◆ Volume Boost ◆ Support for voice recognition ◆ Support for multi-language programmable audio prompts ◆ CSR's proximity pairing and CSR's proximity connection ◆ Multipoint support for HFP connection to 2 handsets for 3.voice ◆ Multipoint support for A2DP connection to 2 A2DP sources for music playback ◆ Talk-time extension 4. Improved Audio Quality CSR's latest 2-mic CVC audio enhancements for narrowband and wideband connections including :: ◆ 1-mic far-end audio enhancements ◆ Near-end audio enhancements) noise suppressionand AEQ) ◆ Wind noise reduction ◆ Packet loss concealment ◆ Bit error concealment ◆ Automatic gain control and automatic volumecontrol ◆ Frequency expansion for improved speech intelligibility ◆ mSBC codec support for wideband speech Four: Performance parameters: Model SN-509- 8670 Bluetooth specification Bluetooth V4.0 Modulation Π / 4 DQPSK, 8DPSK supply voltage 3.3-4.2V Bluetooth protocol HFP V1.6, HSP V1.2, A2DP V1.2, AVRCP V1.4 operating current of <20mA Standby current < 50uA temperature range of -40 ℃ -80 ℃ wireless transmission range ≥10M sensitivity -80dB <0.1% BER Frequency range 2.4GHZ-2.480GHz external interface PIO, SPI, I2C and PCM, USB audio performance stereo supported ACC, MP3, SBC audio Letter dry ratio ≥75dB Distortion ≤0.1% Module size 15mm * 16mm