Audio Technica ATW-901A/H Receiver Body pack Transmitter Wireless Headworn Mic ATW-R900a receiver and ATW-T901a body-pack transmitter with PRO 8HEcW headworn microphone. Features: PRO8HE HEADSET WLS SYS 169.505 169.505 to 171.905 MHz Dipole Antenna for Extended Range Channel, RF, and AF Peak Indicator LEDs Balanced XLR Unbalanced 1/4" Outputs Squelch Control Volume Control Cord Hook to Prevent Accidental Pull-Out Channel Selector Switches Instrument and Microphone Trim Control Professional Locking Bodypack Connector Specifications: Overall System Operating Frequencies: VHF highband, 169 MHz to 172 MHz Modulation Mode: FM Maximum Deviation: +/-10 kHz Frequency Response: 80 Hz to 13 kHz Operating Range: 200' (60 m) typical Open range environment with no interfering signals Total Harmonic Distortion: 1% (at 1 kHz, +/-10 kHz deviation) Operating Temperature Range: 40 F (4 C) to 110 F (43 C) Battery performance may be reduced at very low temperatures Notes: First-generation System 9 (original) components: ATW-R900 receiver ATW-T901 body-pack transmitter ATW-T902 unidirectional dynamic microphone transmitter Click here for the original System 9 Owner's Manual. Handheld Transmitter RF Power Output: 10 mW Spurious Emissions: Following federal and national regulations Battery Type: Two 1.5V AA not included Battery Life: 8 hours (alkaline) Depending on battery type and use pattern Dimensions: 9.91" (251.8 mm) long, 2.11" (53.5 mm) diameter Net Weight: 9.2 oz (260 grams) without batteries Accessories Included: AT8456a Quiet-Flex? stand clamp Body Pack RF Power Output: 10 mW Battery Life: 8 hours (alkaline) Depending on battery type and use pattern Battery Type: Two 1.5V AA not included Dimensions: 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D Input Connections: Four-pin Locking Connector Pin 1: GND Pin 2: INST INPUT Pin 3: MIC INPUT Pin 4: DC BIAS +9V Net Weight: 2.8 oz (80.0 grams) without batteries Spurious Emissions: Following federal and national regulations Receiver Receiving System: Non-diversity, single-channel, dual antenna system Image Rejection: 50 dB minimum RF Sensitivity: 20 dBuV at 60 dB S/N ratio (50 ohms termination) Power Supply: 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply Operating Temperature Range: 40 F (4 C) to 110 F (43 C) Dimensions: 7.48" (190.0 mm) W x 1.82" (46.2 mm) H x 5.06" (128.5 mm) D Weight: 12.0 oz (337 grams) Accessories Included: Power supply Audio Output: Nominal Output Level XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) 1/4" (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) Echotone Music LLC is an experienced E-commerce Audio Visual Equipment dealer since 1998. We take pride in selling Pro Audio gear for musicians, sound engineers, production companies and broadcast applications. Shipping --Pro packed shipped USPS, UPS or Freight Service. Contact us pay for 2 day air upgrade on any unit. We are working hard to get your product ( built if needed), processed shipped. Processing times vary, 2-30 days Returns/Refunds- If there is truly a manufacturing defect a return tag will be provided. Otherwise customer pays for return shipping. Returned items must be sealed/unopened to qualify for a full refund. Refunds are for the Item cost only. Gear returned with out all its original packaging, accessories or shows signs of wear, is subject to an additional service fee. This item is now used and it would be unfair to resell to another customer as new. What products can not be returned? - Clearance items, Custom Builds, items identified as non-returnable, discontinued items, used or NOS items, electronic software downloads, demo gear, computers, vacuum tubes, earbuds, harmonicas raw-frame speakers, drumheads, drumsticks, turntable cartridges, fog fluids