TGOGO Syllable E3 Wireless Bluetooth 4.0 Music Transmitter (Not A Bluetooth Receiver) Connecting Bluetooth Headphones to Non-bluetooth Source for 3.5mm Aux Cable USB Audio Devices(No Drive Required) [Enjoy Wireless Life with All Old Equipment Kept] Enable your TVs CD players Mp3s Walkmans with Bluetooth, so they can output to Bluetooth speakers or headphones [Strong Compatibility] Compatible with almost all output devices who have 3.5mm aux port. CRS Bluetooth 4.0 chips are backwards compatible with Bluetooth 2.0 2.1 3.0 terminal devices.Built-in bluetooth recognition software,No drive required,searching devices more quickly [High performance] Bluetooth 4.0 (High-Fidelity) with A2DP to guarantee good sound quality.PCM professional lossless digital audio signal transmission, directly connected to the computer PCM digital audio without having to adjust the audio, enjoy an unprecedented wonderful music easily The battery life of the bluetooth transmitter lasts up to 8 hours, you can enjoy wireless free all day long Don't just use 3.5mm audio jack,this bluetooth transmitter lets you connect through the computer USB port:another great way to have the transmitter charging and playing music at the same time