Product Information: Function: Radio, dustproof Speaker unit: 2 Type: Portable speaker Connection method: Bluetooth connection Interface type: USB Frequency response range: 60Hz-15KHz Output power: 15w Signal to noise ratio: ≥70db Power supply: built-in lithium battery Channel: 2.1 Playing time: 12 Expansion storage: 4GB Bluetooth protocol: 4.2 Number of speakers: 2 Effective distance: 10 meters Operation mode: button Display: None Shell material: plastic Support format: TF card Speaker adjustment method: button Is there a radio function: Yes Box material: Silicone Appearance size: 10*10cm Product weight: 0.55 (KG) Print LOGO: Yes Packing list: x1 speaker*1+manual*1+audio cable*1+lanyard*1 Colour: Black Power supply mode: USB Size Information: Packing list: Speaker*1+Instruction*1+Audio cable*1+Lang rope*1 packing list: Speaker*1+Instruction*1+Audio cable*1+Lang rope*1

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