Alto-falante pequeno Bluetooth para uso externo TWS sem fio Subwoofer Cartão Alto-falante inteligente

Power mode: USB Whether it is patented Source: No Whether foreign trade: No Color: red, white, black, royal blue Frequency response range: 40Hz-20KHz Built-in battery capacity: 1200mAh-2000mAh (inclusive) Connection method: Bluetooth connection Rated voltage: 5 Additional functions: card insertion, anti-drop, voice prompt, call function Bluetooth version: 5.0 Number of speakers: 1 Applicable scenarios: car, desktop, fitness, outdoor, home, mobile, Karaoke, live broadcast, square dance, broadcasting system, outdoor lawn Appearance size: 14.8 * 10.5 * 8.5cm Rated power: 5 Whether it has a built-in battery: built-in battery Cabinet material: ABS Waterproof grade: not waterproof Effective distance: barrier-free 10-20m Signal to noise ratio: ≥ 75dB