The Bluetooth Receiver is specially designed for Car Stereo systems and Home Audio System. And， it can change the traditional Car Stereo systems and Home Audio System into Bluetooth-enabled ones， and easy to pair with Bluetooth-enabled Smart Phones， laptop， tablet，etc. With this product， you can greatly enjoy music from your phone， laptop & MP3 without the hassle of cables. It is perfectly suitable for the car owners. 

Features:
Magical Function: The Bluetooth Receiver Change the traditional Speakers into Bluetooth-enabled ones. After paired， play music wirelessly from your Bluetooth-enabled Smart Phones， Laptop， Tablet， etc. Support Automatic Re-connection. 
Great Hardware: Bluetooth 4.1 + EDR ensure stable signal， super-fast data transmission and high-fidelity stereo sound.   
Compatible with Most Speakers: Connect the Bluetooth Receiver with any Audio Input Devices， Stereo System (Car Stereo Systems， Home Audio System) & Speaker through standard RCA or 3.5 mm jack. 
Integrated Multi-point Technology: Can simultaneously connect two smarts phone. Also Support Voice Prompt.
Embedded 48MIPS Dual MAC DSP co-processor.  
Support Noise Suppression and Echo Cancellation， offering you Magnificent Stereo Sound & Wonderful Sound Quality. 
Compatible with Lossless Audio Format; Support Stereo Codec; Support AUX Output. 
Superior wireless performance; Transmit up to 30 feet away with line of sight.
Perfectly Compatibility: For iOS / Android Smart Phones， PAD and other Bluetooth-enabled Devices.

Specifications:
Model Number: B2
Bluetooth Version: Bluetooth 4.1 + EDR， Class 2. 
Support Bluetooth Protocols: AVRCP， A2DP 1.3， HFP， HFP1.6， HSP1.2， SPPV1.2. 
Bluetooth Operating Distance: > 10m
Output Connection Way: 3.5mm Stereo Interface.  
Working Current: ≤ 20mA  
Standby Current: ≤ 20uA 
Built-in Battery: 300mAh
Charging Current: 250mAh
Working Time: 8 ~ 10 hours
Standby Time: 15 hours 
Charge Time: 3 hours
Charge Port: Micro USB 5V / 0.5A
Color: Black
Item Size: 11.0 * 6.0 * 1.5cm / 2.17 * 0.98 * 0.39in
Item Weight: 12g / 0.43oz
Package size: 14.0 * 11.5 * 3.0cm / 4.33 * 2.95 * 0.79in
Package weight: 41g / 1.47oz

Package List:
1 * Bluetooth Receiver
1 * 3.5mm Connection Cable
1 * 3.5mm to RCA Audio Cable
1 * USB Cable 
1 * English User Manual