Mini portable metal bluetooth speaker

Type: Bluetooth speaker
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 300mah
Frequency response range: 100HZ-20KHZ
Output power: 3W
Signal to noise ratio: ≥75dB
Power supply mode: built-in lithium battery
Channel: 5.1
Playing time: 2h
Expansion storage: 32GB
Bluetooth protocol: 5.0

Product size: 31 * 50mm

Shell material: space aluminum alloy