Features: Brand new and high quality With precise calibration for accurate tuning and stable performances, it's an essential tool for professionals and hobbyists alike. This receiver is equipped with Portapack's 3.5mm, which makes it available as standard. Voice intercom radio push-to-talk The frequency ranges of radio receiver defined by this software is 1MHz-6GHz. There is a memory card slot for data and code storage, which is very practical and convenient. This USB SDR radio transceiver adopts 0.1PPM calibration, which can achieve accurate tuning and stable performances. It is very easy to use and you can use it with confidence. Easy to connect and install. Press the black knob once to turn it on, and press the black knob twice to turn it off. Specifications: Material:Aluminium alloy Battery Capacity:2000mAh Size:Approx.12.5x8.7x2.9cm/4.92x3.43x1.14inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set LCD Display Screen