Type: Bluetooth speaker
Connection method: Bluetooth connection Interface type: USB Frequency response range: 100HZ-20KHZ Output power: 5W Signal to noise ratio: ≥75dB Power supply mode: built-in lithium battery Channel: 2.1 Play time: 6 hours Expansion storage: 32GB Number of speakers: 2 Effective distance: 10 meters Function: insert card, radio, voice prompt, call function Operation mode: button Shell material: plastic