Audio Technica System 9 Wireless System ATW-901a/L

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) typicalOpen 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