Audio Technica's Freeway 200 Series Wireless Systems are designed to provide reliable performance, easy setup and clear, natural sound quality. The ATW251/H92 professional VHF wireless system includes a ATWR250 receiver, ATWT201 transmitter and PRO92cW headset microphone (black). A novel dipole antenna system on the receiver improves operation by providing a ground element in addition to the usual signal element.
PRO 92cW Onmidirectional Headworn Microphone
Flexible, contoured loop hooks over either ear for a comfortable fit
Natural, smooth frequency response optimized for vocal articulation
Rugged construction designed to stand up to the challenges of day-to-day use
Comes with a storage pouch and clothing clip
Technical Info
Overall System Specifications
Operating Frequency: VHF high band, 169 MHz to 172 MHz
Number of Channels: Fixed channel
Frequency Stability: ±0.005%
Modulation Mode: FM
Maximum Deviation: ±15 kHz
Operating Range: 200' typical
Operating Temperature Range: 40° F (4° C) to 110° F (43° C)
Frequency Response: 80 Hz to 13 kHz
Receiver Specifications
Receiving System: Non-diversity, single-channel, dual antenna system
Image Rejection: 50 dB minimum
Signal-to-noise Ratio: 80 dB at 10 kHz deviation (IEC-weighted), maximum modulation 15 kHz
Total Harmonic Distortion: <=1% (10 kHz deviation at 1 kHz)
Sensitivity: 20 dBµV for 60 dB S/N (IEC-weighted)
Audio Output: 350 mV (1 kHz modulation, 10 kHz deviation, 100 k ohm load)
Output Connector: 1/4" TS ("mono") phone jack
Power Supply: 100-240V AC (50/60 Hz) to 12V DC 1A (center positive) switched mode external power supply
Dimensions: 7.48" (190.0 mm) W x 1.65" (42.0 mm) H x 5.12" (130.0 mm) D
Net Weight: 11.0 oz (311 g)
Accessory Included: Power supply
Body-pack Transmitter Specifications
RF Power Output: 10 mW High position, 2 mW Low position, typical
Spurious Emissions: Under federal regulations
Dynamic Range: >=90 dB, A-weighted
Input Connections: High impedance, low impedance, bias
Battery: 9V (NEDA type 1604) alkaline, not included
Current Consumption: 30 mA typical
Battery Life: Approximately 15 hours in High position; Approximately 20 hours in Low position (depending on battery type and use pattern)
Dimensions: 2.56" (65.0 mm) W x 4.33" (110.0 mm) H x 1.00" (25.4 mm) D
Net Weight: 2.8 oz (78 g) (without battery)
Personal use items that are used at your mouth or in your ear cannot be returned once opened due to health laws. This includes all microphones, guitar talk boxes, ear plugs, and in-ear earphones. 
