1. Bluetooth version: JL5.0. 2.working range: 10m. 3.Shell material: ABS
4.Frequency response: 60HZ-18khz
5.Maximum output power :3W
6.Sensitivity :80dB±2dB.
7.Signal noise ratio: ≥80dB
8.Distortion: less than 0.5%
9.Charging voltage: DC 5 v 10.output power: Φ 52/4 Ω 3 w
11.Battery capacity :300MAH with protection plate: 12.Charging time2-3 hrs 13. Playing time: 1.5hrs 14.Function Description: Bluetooth, FM, TF card, USB, TWS 15.Product size:96×96×39.8mm ,Outer box size :520×245× 445mm ,Packing quantity: 100PCS, N.T: 19KG ,G.W: 20KG