MT0599B Features Supports Bluetooth 2.1 technology and A2DP， IOPT agreement Ensure the stability of audio and sound quality Can memory 10 groups devices which paired with it already Supports optical input， coaxial input and 3.5mm audio input Works with devices supporting Bluetooth and A2DP agreement such as TV， BLU-ray DVD， iPhone， other brand mobile phones and ordinary computers，etc. General Specs Brand & Model TS-BTDF01 Bluetooth V2.1 Audio jack 3.5mm Bluetooth Profile A2DP， IOPT Effective Range 10m Frequency 2402~2480MHz Power Supply 5V 500MA Memory Group Number Ten groups Dimension 91 x 57 x 21 mm Package Details Weight: 196.88 g Size: 19.5*12*4.5 cm