Stand-alone portable PA (public address) system seamlessly combines a 6.5 full-range 40-watt speaker and UHF wireless microphone system for voice amplification applications, multiple wireless microphones are included: a handheld microphone, a belt-pack transmitter to use in conjunction with a lapel or a headset microphone for hands-free applications | Triumphs over outdated, inferior VHF systems with newly upgraded 900 MHz 16 channels selectable UHF wireless microphone system for a noise-free and interference-free transmission, easy system expansion, and frustration-free user experience | 3-way powered: 120V AC wall outlet (power cord included), 12V DC (cigarette lighter cable included), or rechargeable lithium ion battery that lasts up to 8 hours with a full charge, suitable for indoors, outdoors, and on the road | Make yourself be heard without straining or even permanently damaging your vocal cords, a convenient and indispensable tool for classroom teachers, public speakers, fitness instructors, coaches, tour guides, product demonstrators, sporting events officials, bingo callers, marriage officiants, auctioneers, and alike |...

An important note from the manufacturer: Prior to use the 1st time, please open the battery compartment and remove the remove the plastic insulation tape on the battery terminal The Hisonic HS120B seamlessly combines a powerful 40 watts speaker with a VHF wireless microphone system into one portable PA system. The speaker is built-in with a long-life high-capacity rechargeable battery, ideal for outdoor activities where there's no access to a wall outlet. When the battery level is low, simply plug into a wall outlet with included power cord to charge it up again. The speaker can also be powered by the power cord and a 12V/DC adapter (included). The system comes with one handheld transmitter/microphone and one body-pack transmitter, which can be used with either a headset microphone or a lapel microphone. So you have the convenience of choosing one out of the three microphones to use at a time depending on your application. In addition, the system has additional microphone input jack if more microphones are needed. An audio input jack is available so you can play the music using the speaker by plugging in your CD player, cassette...