Audio Technica ATW701/L Wireless Lavalier System
ATWR700 receiver and ATWT701 UniPak transmitter with omnidirectional lavalier microphone

The Audio Technica ATW701/L Wireless Lavalier System delivers professional features and sound quality unheard of in its class. This easy-to-use wireless system features eight selectable frequency-coordinated channels, diversity operation for increased range/reliability, automatic frequency scanning, Tone Lock squelch and more. The ATW701 system comes equipped with an ATWR700 receiver and ATWT701 UniPak transmitter with an omnidirectional lavalier microphone. For multiple-mic applications, as many as eight systems may be used together.

Audio Technica ATW701/L Wireless Lavalier System Features:
-8 selectable frequency-coordinated UHF channels
-Use up to 8 simultaneous systems—all channels compatible
-Automatic frequency scanning
-Diversity operation for increased range/reliability
-LED Channel display plus Antenna, AF Peak indicators
-Balanced XLR and unbalanced ¼” output connectors
-Tone Lock squelch system eliminates interference when transmitter is off
-UniPak transmitter features: separate guitar/mic trim control, switchable high/low RF power, internal channel selector, multi-color
  battery/power indicator, AA operation
-Freeway body-pack systems are compatible with all Audio-Technica Wireless Essentials microphones and cables

Audio Technica ATW701/L Wireless Lavalier System Specifications:
-General 
  -Operating Frequencies UHF band, 542.125 MHz to 561.250 MHz
  -Number of Channels 8
  -Frequency Stability ±0.005%, Phase Lock Loop frequency control
  -Modulation Mode FM
  -Maximum Deviation ±25 kHz
  -Operating Range 200' typical
  -Operating Temperature Range 40° F (4° C) to 110° F (43° C)
  -Frequency Response 100 Hz to 12 kHz
-Receiver
  -Receiving System Antenna-switching diversity
  -Image Rejection 55 dB minimum
  -Signal-to-noise Ratio >80 dB at 10 kHz deviation (IEC-weighted), maximum deviation 25 kHz
  -Total Harmonic Distortion <=1% (10 kHz deviation at 1 kHz)
  -Sensitivity 25 dBµV (S/N 60 dB at 10 kHz deviation, IEC-weighted)
  -Audio Output
    -Unbalanced: 211 mV (-13.5 dBV) (1 kHz modulation, 10 kHz deviation)
    -Balanced: 150 mV (-16.5 dBV) (1 kHz modulation, 10 kHz deviation)
  -Output Connectors
    -Unbalanced: 1/4" TS ("mono") phone jack
    -Balanced: XLRM-type
  -Power Supply 100-240V AC (50/60 Hz) to 12 DC 1 A (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 
  -Accessory Included Power supply
-Body Pack Transmitter
  -RF Power Output High: 10 mW; Low: 5 mW
  -Spurious Emissions Under federal regulations
  -Dynamic Range >100 dB, A-weighted
  -Input Connections High impedance, low impedance, bias
  -Batteries Two 1.5V AA alkaline (not included)
  -Current Consumption High: 140 mA; Low: 130 mA, typical
  -Battery Life Approximately 8 hours (High); 10 hours (Low), depending on battery type and use pattern
  -Dimensions 2.56" (65.0 mm) W x 4.13" (105.0 mm) H x 0.73" (18.5 mm) D