The Marantz Professional PMD-750 is a portable digital wireless system for film and video production, which features a beltpack transmitter, a receiver, and an omnidirectional lavalier microphone. The lightweight (at 3.02 oz) receiver is designed for mounting on a DSLR camera's hot shoe or rig, and is capable of pairing with two transmitters simultaneously (second transmitter available separately), giving you the option to capture speech or dialog for two people, in interview or acting situations. The system operates in the 2.4 GHz frequency range, which is less susceptible to TV and radio interference. It provides high-resolution 96 kHz / 24-bit uncompressed audio, at a range up to 100'. The receiver and transmitter are equipped with locking 4-pin mini-XLR jacks to ensure that body-worn microphones and receiver output cable are securely connected. Both units are powered with two AA batteries and feature a simple-to-operate interface with an OLED display that is easily readable outdoor in sunlight. The PMD-750 ships with a receiver output cable, foam and fuzzy windscreens, a cold-/hot-shoe adapter, and two belt clips. SPECIFICATIONS Operating Frequencies 2.401 to 2.483 GHz Dynamic Range > 110 dB THD < 0.01 % Latency 3.5 ms Operating Range Up to 100.0' / 30.4 m Frequency Response 50 Hz to 18 kHz Audio Quality 96 kHz / 24-bit, uncompressed Input Connector Mic Input: 4-pin mini-XLR, locking Maximum Input Level 1 Vrms Bias Voltage 5 V (for condenser mics) Input Impedance 10 kOhms Power 2 x AA alkaline batteries Dimensions (W x D x H) 2.6 x 4.0 x 1.6" / 66.0 x 101.6 x 40.6 mm Weight 2.9 oz / 82.0 g Frequency Response 20 Hz to 20 kHz Pairing Bands 16 channels Output Connector 4-pin mini-XLR, locking Operating Temperature 14 to 131° F / -10 to 55° C Maximum Output Level 1 Vrms Output Impedance 300 Ohms Power 2 x AA alkaline batteries Dimensions (W x D x H) 2.6 x 4.0 x 2.2" / 66.0 x 101.6 x 55.9 mm Weight 3.2 oz / 90.0 g Frequency Response 20 Hz to 20 kHz Output Impedance 3 kOhms Polar Pattern Omnidirectional Type Electret condenser Sensitivity -38 dB, ± 3 dB Equivalent Noise 25 dBA SPL Level 130 dB (maximum) Cable Length 41.3" / 104.9 cm Weight 0.6 oz / 16.0 g