Features: Directly?connect?to?the?car?stereo?system，?speakers?or?headphones?with?3.5mm?audio?input Receive?audio?signals?streamed?wirelessly?from?audio?devices?via?Bluetooth Long?operation?range?up?to?10?meters Support?USB?power?supply Mini?size，?lightweight，?easy?to?carry Specifications: Color:?Black Bluetooth?Version:?Bluetooth?V2.1?+?EDR? Effective?Range:?10M Power?Supply?Mode:?USB?5V?POWER Dimensions:?56*21mm Weight:?28G Package?Includes: 1?x?Bluetooth?Music?Receiver 1?x?3.5mm?Connecting?Line ?