375072 1. Plug and play， no driver required 2. Long working range， up to 10m (33 ft) 3. High-performance Bluetooth V2.1， 3.5mm stereo output 4. Charging one time can be used for up to 8 hours， support charging while playing 5. Streaming wireless music from your smartphone， tablet and Bluetooth enabled music devices from up to 33 feet away Type: SF-LY001A Material: ABS Color: black Dimension: 60 x 36 x 15mm Technical parameters: Bluetooth version: V2.1 Working range: about 10 meters Bluetooth profile: A2DP Power input: DC 5V Battery: 250mA battery built-in Play time: 8 hours Function: play control and hand-free calling Button: power on-off button Interface: 3.5mm audio， mini USB 1 x Bluetooth Receiver 1 x Audio cable 1 x Audio connector 1 x USB cable 1 x English user manual