• 40 optional frequencies on each channel, Up to 5 Receivers & 10 Mics can be work at the same time. Prevent Interference. The 333 receiver is compatible with two microphones, handheld or bodypack. it can support two handheld mics or two bodypack mics at the same time, or you can be freely combined.
• Battery Life: 14-17 Hours.Working Range in wide-open area: 180-240 Ft(60-80m). Using Unidirectional neodymium dynamic cartridge for optimum true and clear sound.Ideal for Church, Weddings,Presentations.
• Easy to carry .2 Lavalier & Headset Microphones,Light and compact, for the freedom to go wherever the job requires. Backlit LCD with easy to know frequency channal and battery levelIf you want to connect to PC MAC or Camera Phone, pls get a Focusrite
• Quick Manual frequency pairing to find and set the best available channel, Automatic transmitter setup, the channel of the transmitter and receiver can easily synchronize
• What you get: Receiver,2Lavalier & 2Headset Microphones , power adapter, 1/4 audio cable, 6.35 to 3.5mm audio adapter,2 Antenna

For parts. Entire unit powers on with no further testing. Has visible signs of use. Looks as if all parts are there. Everything included with this item can be seen in the images. innopow 80-Channel Dual UHF Wireless Microphone System,inp Cordless mic Set, 2 Headset& 2 Lapel Lavalier Microphone, Long Distance 200-240Ft Prevent Interference,16 Hours