Overweight subwoofer mobile phone mini speaker $ 22.31 specification: Battery capacity: 2500mAh Power mode: built-in lithium battery Frequency response: 20-20KHz Output power: 5Wx2 Signal to noise ratio: 80DB Expansion storage: 32GB (not included) Bluetooth version: 5.0 Effective distance: 10 meters Function: voice prompt, broadcast, card insertion, hands-free File format: MP3, WAV Appearance size: 175x70x55mm 4 playback modes: Bluetooth, TF card, U disk, AUX-IN Package Included: 1 Bluetooth speaker 1x audio cable 1x charging cable 1x instruction manual
