E-1047 RGB USB Speaker

Interface Type: UsbConnection Mode: 3.5Mm Audio SocketFrequency Sound Range: 60Hz-15 KhzOutput Power: Usb 5VSnr: 70 DbSound Channel: 2Power Supply Mode: The External Battery Distribution Is RequiredMode Of Operation: UsbNumber Of Horns: 2Bluetooth Protocol: NoEffective Distance: 80Battery Capacity: NoPlay Duration: 8 HoursCase Material: PlasticBox Body Material: PlasticAppearance Dimensions: 78 * 80 * 125Product Weight: 0.3Function: Voice Prompt, Call Function