Wireless Small Steel Cannon Insert Chuck Small Speaker Mini Subwoofer $ 7.54 Product information: Interface type: USB Battery capacity: 300 mA Frequency response range: 60Hz-15KHz Output power: 3W Signal to noise ratio: 70db Power supply mode: Built-in lithium battery Channel: 2.1 Playing time: 3 hours Expansion storage: 4GB Bluetooth protocol: 4.0 Number of speakers: 1 Effective distance: 10 meters Function: Insert card, radio, call function Operation mode: Button Applicable people: General Play format: MP3 Shell material: Plastic Appearance size: 886cm Product weight: 0.256 (KG)
