Description: -Magical Function: Change traditional DVD, TV, Notebook or PC into a Bluetooth-enabled one. After connected with them via 3.5mm audio cable, B5 can transmit the audio files of them to the Bluetooth-enabled Receiver devices (such as, Headset, Speaker, Bluetooth Receiver,Music Player, etc). -High-quality Sound Effect: Adopts Advanced Bluetooth 4.0 Module which lets it gets high-quality sound effect with A2DP & AVRCP, and its Built-AEC echo cancellation and noise cancellation circuit ANC, offering and allows you to enjoy gorgeous and more pure stereo sound. -Fully Compatibility& Strong Signal: fast pair and support transmitting music signal from up to 10 meters (33-feet) away. B5 comes with external Antenna which can enlarge the Bluetooth transmitting range and enhance the stability of the signal. -Power By USB: With USB port, you can plug and play this transmitter easily and no need any other driver software, powered by USB, there is also no time limited. -Compact Portable Size & Lightweight: Measuring Size 82 * 25 * 10 mm and weigh 16g. More convenience to enjoy clear stereo music anytime and anywhere. Specification: - Six Advantages: With Antenna; Signal Enhancement; Imported Chipset; Fast Pairing; Metal Port; Plug and Play. - Product Type: Wireless audio transmitter - Bluetooth Version:V4.0+EDR,ClassⅡ - Chip: CSR8670 - Supports A2DP, AVRCP, HFP Protocol. - Bluetooth Range:﹥10M(space place) - Work Current: About 100mA - Input:3.5mm Stereo Audio Port - Charging: Micro USB 5V/0.5A - Powered By USB port - Main Item Size: 8.2 * 2.5 * 1.0cm / 2.4 * 0.98 * 0.47in Package Includes: 1 Set Receiver