Retro Bluetooth speaker with Radio ModeSpecifications: Interface type: USB Effective range: 10m Waterproof: Yes Support format: U disk TF card Speaker Type: Portable Sound box adjustment mode: Key Signal to noise ratio: 75dB Shell material: Plastic Power mode: USB Power Source: Battery Playback Function: Radio,mp3,WAV PMPO: 16W Output power: 16W Number of speakers: 2. Number of Loudspeaker Enclosure: 1 Is there a radio function: have Input Power(W): <25 W Function: Plug in, radio,