ATW-R3210N network-enabled receiver and ATW-T3201 body-pack transmitter with cH-style screw-down 4-pin connector. Select a microphone or cable with a cH-style screw-down 4-pin connector to complete the system. Available separately, the AT-cWcH Adapter Cable enables wireless microphones with a cW-style locking 4-pin connector to be used with body-pack transmitters that have a cH-style screw-down 4-pin connector.Body Pack Specifications:RF Power Output: High: 30 mW, Low: 10 mW (switchable), at 50 ohmsBattery Life:High: 8.0 hours (alkaline), Low: 9.0 hours (alkaline)High: 9.0 hours (Ni-MH 1900mAh), Low: 9.5 hours (Ni-MH 1900mAh)(Depending on battery type, usage, and environmental conditions.)Battery Type: Two 1.5V AA, not includedDimensions:64 mm x 82 mm x 23 mm (W x D x H)2.52″ x 3.22″ x 0.91″ (W x D x H)Input Connections (cH-style screw-down 4-pin connector):Pin 1: GNDPin 2: INST INPUTPin 3: MIC INPUTPin 4: DC BIAS +5VNet Weight: 102 g (3.6 oz), without batteriesSpurious Emissions: Following Federal and National RegulationsHigh-pass (low-freq. roll-off): 125Hz, 12dB/octaveReceiver Specifications:Receiving System: True DiversityImage Rejection: 60 dB nominalRF Sensitivity: 20 dBuV at 60 dBA S/N ratio (50 ohms termination)Maximum Output Level: XLR, balanced: +14 dBV 6.3 mm (1/4″), unbalanced: +8 dBVAntenna Input: BNC-type, 50 ohmsAntenna Power: 12 V DC, 160 mA (combined)Power Supply: 100-240V AC (50/60 Hz) to 12V DC 1A (center positive) switched mode external power supplyDimensions:210.0 mm x 191.0 mm x 43.4 mm (W x D x H)8.27″ x 7.52″ x 1.71″ (W x D x H)Weight: 1100 g (38.8 oz), without accessoriesAccessories Included: Two flexible UHF antennas; AC adapter (country dependent); rack-mount Adapters