Function: Card insertion, voice message, call function, TF card playback, TWS pairing Applicable scenarios: office, outdoor, home, mobile and portable, outdoor lawn Type: Bluetooth speaker Connection method: Bluetooth connection Interface type: USB Frequency response range: 60Hz -16KHz Output power: 5W Signal-to-noise ratio: ≥75dB Power mode: built-in lithium battery Single channel: single diaphragm Playback time: 20 hours at medium volume Extended storage: 32GB Bluetooth protocol: 5.0 Number of speakers: 1 Effective distance: 10 meters Operation method: button Applicable audience: General Display: None Playback format: MP3, WAV Shell material: plastic Does it support APP: No Supported format: TF card Speaker adjustment method: button Is there a radio function: No Cabinet material: ABS Appearance size: 83*83*99MM Product weight: 0.45 (KG) Packing list: manual, charging cable Waterproof rating: IPX 4 Bluetooth version: 5.0 Shell: rubber paint Charging capacity built-in battery: 1200mA-2000mA Battery capacity: 1200mAh