Hisonic HS120B Portable PA System with Wireless Microphones, Black 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 player or an MP3 player including ipod. With its versatility and portability, this system has been widely used among the professions such as teachers, auctioneers, studio instructors and etc. If you need to find out more about this product, you can reach us toll free 866-524-8676, M-F, 9AM-5:30PM Pacific standard time, excluding major national holidays. The package includes the speaker, one handheld microphone, one body-pack transmitter, one headset microphone, one lavalier microphone, power cord, two 9V batteries, 12VDC adapter (cigarette lighter adapter) and a carrying bag.