Features 1. Converts traditional car stereo systems and home audio systems into Bluetooth-enabled ones. 2. Easy to pair with Bluetooth-enabled smartphones, laptops, tablets, or MP3/MP4 players. 3. Listen to music from your phone, laptop, or MP3 player after successful pairing without the hassle of cables. 4. Built-in high-definition microphone with noise cancellation technology. 5. Hands-free calling function for added convenience and improved driving safety. Specifications - Converts traditional car stereo systems and home audio systems into Bluetooth-enabled ones - Easy pairing with Bluetooth-enabled smartphones, laptops, tablets, or MP3/MP4 players - Wireless audio streaming from phone, laptop, or MP3 player after pairing - Internal high-definition microphone with noise cancellation technology - Hands-free calling capability - Simple wireless connection to existing audio devices; compatible with any stereo line input - Micro USB charging port for convenient charging via computer or any USB power source - Sleep mode for energy saving; compact and portable design - Compatible with car stereo systems, home audio systems, and headphones Condition: New Material: ABS Color: Black Bluetooth Version: 3.0 Transmission Distance: 10m Working Time: 4 hours Package Weight: Approx. 31g / 1.1oz Package List 1 x Bluetooth Receiver 1 x 3.5mm Socket 1 x USB Cable 1 x User Manual