10W 3-inch external magnet, Bluetooth speaker, Interface type: USB, Battery capacity: 3.7V 3000mAh, Frequency response range: 80HZ-18KHZ, Output power: 2*10W, Signal to noise ratio: ≥ 80dB, Power mode: built-in lithium battery, Game time: 6 hours, Bluetooth protocol: 5.0, Number of speakers: 2, Effective. Distance: 10 meters, Support format: U disk + TF card, Radio FM, Size: 153.7*143.73*341. . 5mm, Product weight: 1.48 (KG)