Details: <div >Specification:Connection method: Bluetooth connection Interface type: USB Frequency response range: 20Hz-20KHz Output power: below 10W Signal-to-noise ratio: &ge;75dB Power supply mode: built-in lithium battery Channel: 2.1 Playing time: 6 hours Expandable Storage: 32GB Number of speakers: 1 Effective distance: 15 meters Operation mode: button Display: none Playback format: MP3 Whether to support APP: No Supported format: TF card Speaker adjustment method: button Whether there is a radio function: no Box material: ABS+; Metal Appearance size: 78*78*110MM Power supply: USB Waterproof grade: IPX 4 Built-in battery capacity: 1000mAh-1200mAh Bluetooth protocol: 5.0</div><div >Package Includes:1*Speaker 1*Charging cable 1*Instruction</div><div ><img data-srcid='82804942' /><img data-srcid='82804952' /><img data-srcid='82804962' /><img data-srcid='82804972' /><img data-srcid='82804982' /><img data-srcid='82804992' /><img data-srcid='82805002' /><img data-srcid='82805012' /><img data-srcid='82805022' /></div>&nbsp;

Portable Wireless Bluetooth Speaker 3D Stereo Music Surround Audio Subwoofer Support TF Card Outdoor Waterproof Loudspeaker