Function: Insert card, radio, voice message, call function Applicable scenarios: Car, desktop, fitness, outdoor, home, portable mobile phone, K song, live broadcast, square dance, broadcasting system, outdoor lawn Type: Portable speaker Connection method: Bluetooth connection Interface type: USB Frequency response: 100HZ-20KHZ Output power: 3W*1 Signal-to-noise ratio: ≥70db Power supply mode: Built-in lithium battery Audio track: 2.1 Playback time: 6 hours Extended storage: 32GB Bluetooth protocol: 5.0 Number of speakers: 1 Effective distance: 10 meters Operation method: button Applicable audience: General Display: None Shell material: plastic Whether APP is supported: No Supported formats: TF card Speaker adjustment method: button Is there a radio function: yes Box material: plastic Appearance size: 82*59*57mm Product weight: 0.192 (KG) Packing list: Bluetooth speaker, data cable Power source: USB Waterproof rating: not waterproof Bluetooth version: 5.0 Shell craftsmanship: ordinary craftsmanship Built-in battery capacity: 1200 mA-2000 mA Battery capacity: 1200mah