U3 TWS Interconnect Portable Mini Wireless Stereo Speaker Bluetooth Gun Metal Heavy Subwoofer Outdoor SpeakerSPECIFICATIONS Input Power(W): <25 W Brand Name: SUPMANGO Channels: 1 Voice Control: No Input Output: Other Speaker Type: Portable Cabinet Material: Metal Use: Other Number of Loudspeaker Enclosure: 1 Communication: bluetooth Communication: WireLess Support APP: No Battery: Yes Waterproof: No Intelligent Personal Assistant: none Category: Speakers Power Source: AC Power Source: USB Origin: Mainland China Sound Mode: Extra Bass Mode Sound Mode: Other