Smart electronic card Bluetooth audio speaker Color:Black Bettery is not allowed for

Bettery is not allowed for many shipping methods

Real-time monitoring is available

silver gray X1 pieces

Dimensions: 65*52*21(mm)

Smart electronic card Bluetooth audio speaker Color:Black Bettery is not allowed forType: Bluetooth speaker Connection method: Bluetooth connection Interface type: USB Battery capacity: 450MA Frequency response range: 100HZ 20KHZ Output power: 3 ohm 4W Signal to noise ratio: 75dB Power supply: built in lithium battery Channel: 2. 1 Playing time: 6 hours Expansion storage: 32GB Bluetooth protocol: 4. 1 Number of speakers: 2 Effective distance: 15 meters Function: card, waterproof, radio, dustproof, drop proof, voice prompt, call