Frequency range: 435-480 MHz (UHF). Channel spacing: 12.5 / 25 kHz.
Frequency stability: ±2.5 ppm. Rated audio output: 500 mW. Dimensions (H x W x D): approx. 4.7 x 2.3 x 1.5 in (120 x 58 x 37 mm).Operating temperature: -30°C to +60°C (-22°F to +140°F). Military standard: MIL-STD 810 C / D / E / F. Usually it costs about 30USD-50USD.
If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.