TWS Pocket Portable Bluetooth Speaker $ 22.64 Brand: VVADI Type: Mini speaker Connection method: Bluetooth connection Interface type: USB Battery capacity: 500MAH Frequency response range: 100HZ-20KHZ Output power: 3W Signal to noise ratio: 75dB Power supply mode: built-in lithium battery Playing time: 6 hours Bluetooth protocol: 4.1 Effective distance: 15 meters Function: drop-proof, dust-proof, call function Shell material: metal Whether to support APP: No Speaker adjustment method: button Cabinet material: aluminum alloy Power supply mode: USB
