colors to choose from Black, Grey, Blue, Red, Green Default color is black If you need to change other colors Please leave message to us for change within 12 hours of order submission Type: speaker Bluetooth Connection method: Bluetooth connection Interface type: USB Battery capacity: 1200mAh Frequency response range: 60Hz-15KHz Output power: 5W Signal to noise ratio: 70db Power supply mode: built-in lithium battery Channel: 2.1+1 Playing time: 8 hours Bluetooth protocol: 3 Number of speakers: 2 Effective distance: 15 meters Function: waterproof, anti-drop, voice prompt, card insertion, dustproof, phone function 'call Mode of operation: button Display: None Playback format: MP3 Shell material: plastic Support format: TF card Speaker adjustment method: button Is there a radio function: None box: plastic Appearance size: 16.0 cm * 5.5 cm * 11.5 cm Product weight: 0.3 (KG) Packing list: packing box + charging cable + speaker Power mode: USB