Brand: kingneed Supply category: Spot Interface type: USB Power supply mode: built-in lithium battery Extension storage: 64G Effective distance: 10 meters Applicable people: general Shell material: wood Top adjustment method speaker: button Appearance size: 195*88*97mm Packing list: host + manual + charging cable Power mode: USB Time to market: 2018 Type: Bluetooth speaker Battery capacity: 1200 mah Channel: 2 Bluetooth protocol: 4.2 Function: map, radio, voice prompt, call function Display: None Whether to support APP: No Is there a radio function: Yes Product weight: 0.54 (KG) Connection method: Bluetooth connection Output power: 2.5W 2 independent groups Playing time: 8-15 hours Number of speakers: 2 Operation mode: button Playback format: MP3 , WAV Media format: TF card Box material: wood