Specifications:
Bluetooth Version:4.1+EDR,CLASS 2
Built-in microphone
Easy to Use ,plug play
Support Bluetooth hands-free function
Transmission distances of up to 45 feet in open space without obstacles.
Wireless music receiver connects to 3.5mm headphone jacks
Use with home stereos/speakers, car stereos, headphones etc
Item size:1.96 (L) *0.98 (W) *0.43(H) inch

Package includes:
1 x Bluetooth Music Receiver
1 x USB Power Cable
1 x audio cable
1 x User Manual

• ADVANCED BLUETOOTH 4.1 VERSION: Get high quality audio sound than the Bluetooth 3.0 version, both in playing music and answering calls.
• RECHARGEABLE BATTERY: Built-in rechargeable battery, provides super long time working time.
• TWO-LINK: Can be connected to two bluetooth devices at the same time. Bluetooth range reaches up to 45 feet in open space without obstacles.
• ESAY OPERATION: One button easy pairing with iPhones, iPads, Android Smartphone, tablets, and computers in seconds.You can answer phone calls and control music on the receiver with ease.
• WIDE COMPATIBILITY.Compatible with most Bluetooth enabled devices like smart phone, MP3, tablet, etc.Lightweight and portable make this bluetooth receiver is a versatile wireless solution for a wide range of use cases. ideal for home or vehicle audio systems.

ADVANCED BLUETOOTH 4.1 VERSION: Get high quality audio sound than the Bluetooth 3.0 version, both in playing music and answering calls.Vangold