PANASONIC / WX-4700

In addition to two wired microphones, you can connect a radio cassette player, CD player, and other two inputs, for a total of four inputs. You can send these sources to the 800Mhz band wireless receiver. Also, it has a built-in "auto mute function" that detects audio and automatically lowers the volume of other inputs.

■ Transmission frequency: 806.125 MHz to 809.750 MHz (0.125 MHz interval 30 waves)
■ Tone signal: 32.768 kHz
■ Radio wave format: F3E, F9W
■ Oscillation method: Crystal controlled PLL synthesizer method
■ Modulation method: Reactance modulation method
■ Antenna power: 2 mW
■ Reaching distance: about 100 m from the diversity receiver WX-4020B system (outdoor) * 1
■ Modulation sensitivity (sensitivity switching): -60 dBV: ± 5 kHz FM (at 74 dB SPL 1 kHz) -20 dBV: ± 5 kHz FM (118 dB: at SPL 1 kHz)
■ Microphone input 1
 : Balanced input: Large double-jack, 600 Ω, input sensitivity -60 dBV / -20 dBV switching, auto mute
■ Microphone input 2
 : Balanced input: Large double jack, 600 Ω, input sensitivity -60 dBV / -20 dBV switching
■ Auxiliary input 3.4
 : Unbalanced input: φ3.5 mini compound jack 600 Ω, input sensitivity -60 dBV / -20 dBV switching
■ Headphone output: Unbalanced output: φ3.5 mini compound jack (L + R monaural) -20 dBV, 32 Ω, with output control knob (rear surface)
■ Main volume control: Variable volume after input 1-4 mixing
■ Frequency characteristics 100 Hz to 10 kHz (1 kHz standard 50 μs emphasis)
■ Maximum input sound pressure: 110 dB SPL
■ Input equivalent noise: 40 dB SPL or less (A curve)
■ Auto mute: Mute amount switching: Off / Small / Large, Input detection sensitivity switching: Low / Medium / High
■ Control method: ASK by tone signal
■ Control signal: For battery level
■ Power supply: AC adapter (accessory) or AA batteries (sold separately) x 4
■ Current consumption: about 90 mA (when using AC adapter), about 80 mA (when using dry batteries)
■ Battery life: about 15 hours (when using Panasonic AA alkaline batteries LR6 (PG)) (at room temperature of 25 ° C continuous use) [about 7 hours (when using Panasonic AA manganese battery R6P (NB)) ]
■ Operating temperature range: 0 ℃ to +40 ℃
■ Dimensions: Width 178 mm, Height 65 mm, Depth 200 mm
■ Weight: about 590 g (main unit only) 760 g (included AC adapter)
■ Finish: Panel cover: Metallic Sky Blue, Case: Dark gray ABS resin