Mini Portable Concentric Lock Bluetooth Speaker

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Product information: Connection method: Bluetooth connection Interface type: USB Frequency response range: 60Hz-15KHz Output power: below 10W Signal to noise ratio: ≥ 70db Power su pply method: built-in lithium battery Playback duration: 6 hours Number of speakers: 1 Effective distance: 8 meters Operation method: buttons Playback format: MP3, WMA, WAV Shell material: metal Box material: metal Appearance size: 52 * 86 * 30mm Color: Pink Packing list: Speaker * 1 Instructions * 1 Charging cable * 1 Gift box * 1 Show more