Features:
Built with Bluetooth 4.2 to smart your life that you can enjoy music and hands-free calling from your smartphone in premium-quality sound.
It adopts CSR chipset, ensuring high grade audio quality, base on bluetooth version 4.2, transmission speed is 2.5 times than 4.0.
Used with APT-X LL tech, it will make the sound more prominent, latency is lower.
It is with built-in bluetooth receive mould, change your car into bluetooth wireless audio device, enjoy wireless music.
Built-in mic for handsfree phone call, more safe in driving.
Phone GPS transmit to car audio, more safe and convenient for driving.
Built-in NFC mould and device number, closed and connected, avoid long searching device time, pairing easily.
It can connect to device with a 3.5mm aux input, change it to be a bluetooth one, wireless pair with your smartphone, and most of bluetooth devices.
It can connect two Bluetooth devices at the same time.And it also could compatible with most smartphones and Bluetooth electronics, ideal for home or vehicle audio systems and wired headphones.
The music receiver can be used with almost any audio receiver with an audio input jack, including automobiles.
To enjoy car music, call solutions, the use of smart phones to make calls and listen to music through the car stereo.

Descriptions:
The 16 bit stereo codec is built, and the signal to noise ratio of digital to mode conversion is up to 85dB.
Support SBC, MP3, AAC, APTX, APTX-LL audio format
Support CSR Secure simple pairing, Proximity pairing and CSR Proximity connection.
The music receiver(hands-free) is designed to receive music from mobile phones or transmitters that feature Bluetooth wireless technology.
Support Bluetooth hands-free call function.

Specifications:
Model: B7-PLUS
Size: 58mm*58mm*14mm
Battery: 300mAh
Work time: >10 hours
Charge time; 2 hours
Support: A2DP 1.3 AVRCP 1.6 HFP1.6 HSP1.2
Sound quality: APT-X APT-X LL AAC SBC