Hisonic HS420 Rechargeable Portable PA System with Dual Wireless Microphones with MP3 Player/Recorder, Bluetooth Connection and Tripod Included Built-in VHF wireless microphone system featuring one handheld microphone, one belt-pack transmitter with the options of either a lapel or a headset microphone for hands-free applications Award-winning 2.4G Bluetooth technology enables wirelessly streaming music from devices such as your mobile phone, notebook, iPhone or iPad, plus plug-n-play USB port and SD card reader with built-in MP3 player/recorder Powerful 40 watts RMS speaker delivers loud and clear sound even in a noisy environment Microphone input available for additional microphone hook-up and auxiliary input for wired connection with an external audio device, for example, an MP3 player 1 Year USA warranty