BT speaker 544

Box material ABS
Power supply method: Lithium battery
Waterproof grade: not waterproof
Built in battery capacity 2000mAh-4000mAh (inclusive)
Connection method: Bluetooth connection
Is there a built-in battery
Applicable scenarios include in car, desktop, fitness, outdoor, home, mobile and portable, karaoke, live streaming, square dancing, broadcasting system, outdoor lawn
Frequency response range 100HZ-20KHZ
Signal to noise ratio ≥ 70db
Number of speakers 2
Effective distance 10
Appearance size 245 * 105 * 105mm
Colors: Black, Red, navy blue, khaki, military green
Bluetooth version 5.3
Rated power 20
Net weight of the product is 1.17KG
Rated voltage 3.7
Additional features include card insertion, waterproof, recording, lighting, anti drop, voice prompt, NFC function, and cash broadcast