Specifications：

System
Oscillator type: PLL Synthesized Control Oscillator
Carrier Frequency Range: 576.4 MHz-599.9 MHz
Channels: 48
Frequency response: 60Hz-15 KHz+/-3 dB
Operation range: 100m (300')(without obstacle)
Operating temperature: 14°F to 122°F (-10℃to +50℃)
Storage temperature: 14°F to 131°F (-10℃to +55℃)

Transmitter
RF output power: 20 mW
Antenna: Flexible
Spurious emission: 250 nW or less
Audio input connector: 3.5mm mini jack
Audio input level: 600 mV-2000 mV
Reference deviation: ±7KHz (-60 dBV, 1 KHz input)
Input frequency range: 20 Hz-20 KHz
Power supply: Two AA batteries
Operation time: 8 hours
Dimensions:(H x W x L) 4.2” x 2.6” x 1.1”
(10.6 x 6.7 x 2.9 cm)
Weight: 95g (3.4 oz) without batteries

Receiver
Antenna: Flexible
Audio input connector: 3.5mm mini jack
Signal-to-noise ratio: 80 dB
Distortion: 0.8% (-60 dBV, 1 KHz input)
Earphone output level: 60 mW, 32 Ohms/1KHz
Audio output level: 120 mV
Power supply: Two AA batteries
Operation time: 8 hours
Dimensions:(H x W x L) 4.2” x 2.6” x 1.1”
(10.6 x 6.7 x 2.9 cm)
Weight: 98g (3.5 oz) without batteries

Lavalier Microphone
Transducer: Back electret Condenser
Polar pattern: Omni-directional
Frequency Range: 35Hz ~ 18 KHz
Signal / Noise：74dB SPL
Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1 kHz
Connector: 3.5mm locking mini plug
Length: 1.2m (4')