Includes: 2 wireless handheld microphones 1 receiver unit User manual Batteries Power adapter Features: Rockville RWM1202VH VHF Dual Channel Handheld Wireless Microphone System mproved high performance wireless handheld microphone capsule Includes transmitter with two handheld high sensitivity unidirectional wireless cardioid microphones Featuring a dual filter design to limit feedback and interference Ultra signal stability eliminates unwanted distortion Transmitter automatically links to receiver for ease of use Use two handheld mics at once Individual microphone volume controls Rugged metal housing Comfortable ergonomic composite microphone construction Low power consumption for longer battery life Specifications: System: Operating Range: 100´-200´(indoor) 65´-165´(outdoor) Channel: Two Channel Frequency Range: 170MHz - 260MHz Frequency Response: 80MHz-12000MHz Frequency Width: 32Mhz Dynamic Range: 110dB Operating Temp: 14°F – 122°F Oscillation Mode: Quartz Crystal Frequency Stability: ±0.005% Modulation Mode: VHF Frequency Response: 80Hz – 8 KHz (±3 dB) Harmonic Radiation :2mV De-Emphasis: 50µS Audio Output Impedance: 600Ω Audio Output Level.: 0-0.5V Power Supply: AC110V /220V 50/60Hz Current Consumption: ≤50mA Audio Out Connector: 1/4˝ unbalanced Transmitter: Frequency Stability: ±0.005% RF Output Power: ≤30mW Modulation Mode: VHF Maximum Deviation Range: ±50KHz Microphone Mode: Fixed Pre-Emphasis: 50µS Power Supply: AA/1.5V×2 Current Consumption: ≤35mA