Devil Bluetooth Speaker Karaoke Microphone Radio

Product information: Type: Bluetooth speaker Connection method: Bluetooth connection Interface type: USB Battery capacity: 2200 mAh Frequency response range: 40Hz-20KHz Output power: 5W Signal to noise ratio: ≥70db Power supply mode: built-in lithium battery Playing time: 8 hours Expansion storage: 32GB Function: insert card, radio, voice prompt Shell material: plastic Appearance size: 120*120*110mm Colors: White, Black Packing list:   Mini microphone, charging cable, audio ca