The AtlasIED MW100BP-OE is a complete wireless microphone kit that includes a wireless receiver (MWRCVR), beltpack wireless transmitter (MWBPT), and over ear microphone (MWOEM) as well as the necessary antennas, cables, and power supply for proper functionality in a variety of installations including classrooms, conference rooms, lecture halls, and live presentations. The MWRCVR receives signal from the MWBPT via the 25MHz frequency band, where any one of 100 usable frequencies can be assigned to MWRCVR and MWBPT, via patented 2-way technology that ensures quality of data transmission between the two units. The MWRCVR includes a balanced XLR output as well as an unbalanced 1/4" line output that can be connected to a variety of devices including AtlasIED power amplifiers. A switch allows the user to choose between mic or line input and the dual antennas ensure quality reception wherever the unit is located. The MWBPT is a beltpack wireless transmitter that connects to the MWOEM over ear microphone and that can be used with either two standard alkaline or rechargeable NiMH AA batteries. The MWHBPT can provide up to 16 hours of usage when using rechargeable NiMH batteries. The integrated LCD displays channel, frequency, and battery level for easy identification when pairing the unit to the receiver. MWRCVR Specifications Frequency Range UHF 566MHz - 585.8MHz Switching Bandwidth 25MHz Switchable Frequencies 100 Display Type LCD Operating Range 100m Direct Sight Sensitivity -95dBm Signal to Noise Ratio > 110dB THD < 0.5% Power Supply 100-240V AC, 12V DC/1.6A Dimensions 7.87" x 5.91" x 1.73" (200mm x 150mm x 44mm) Weight 1.39 lbs (0.63kg)