20W TV Speaker Wireless Bluetooth Speaker Portable Column Bass Soundbar Subwoofer with FM Radio for Computer TV Sound System Box

Connection mode: Bluetooth connection Interface type: reader Battery capacity: 2000 Ma Power supply mode: built in lithium battery Vocal tract: 2.1 Duration: 6 hours Number of horns: 4 Extended storage: 32GB Effective distance: 15m Box material: plastic Whether there is radio function: Yes Whether app is supported: Yes Transmission distance: 8-10m Charging type: microUSB 5V/1.5A    Size: 550*50*50mm