Portable high-power Bluetooth audio RGB marquee waterproof card subwoofer

Applicable scenes: outdoor lawn, others Connection method: Bluetooth connection Frequency response range: 100HZ-20KHZ Signal-to-noise ratio: ≥95dB Number of speakers: 10W*2 Effective distance: 10 meters Cabinet material: ABS Appearance size: 220*105*108 Power supply mode: lithium battery Waterproof level: IPX 4 Bluetooth version: 5.3 Built-in battery capacity: 2000mAh-4000mAh (inclusive) Rated power: 20 watts Product net weight: 1.2kg Rated voltage: 5 Additional functions: card insertion, call function, money collection broadcast Whether there is a built-in battery: Built-in battery