Bluetooth version: V5.0Rated power: 10WCharging voltage: 5V 1AFrequency range: 50HZ-18HZEffective distance: within 20 meters (in an open environment)Playing time: | about 8 hoursBattery capacity: 2500mAhSignal to noise ratio: ≥75DBPlay mode: .Bluetooth, AUX, TF cardWeight: approximately 379 gSize: 84X11 8mm