Bubble Girl Bluetooth Speaker $ 14.19 Interface type; USB Battery capacity: 1200 mA Output power: 5W Power supply mode: built-in lithium battery Channel: 2.1 Playing time: 6 hours Expansion storage: 32GB Bluetooth protocol: 4.1 Number of speakers: single Effective distance: 10 meters Function: insert card, radio, TWS, voice prompt, call function Operation mode: button
