High-performance speaker and stable transmission ensure clear communication. Mini size for easy portability, you can hide it wherever you want. Transceiver and earpiece are both designed with clips for easy attachment. Also comes with 2 lanyards. Transmission range depends on many factors (weather, buildings, etc). General range is 1-3 km. Ergonomically designed speaker, will not cause you discomfort. Applications: Used in supermarkets, shopping malls, hotels and other places. The LED light helps you know the radio's status, when charging, active or receiving a signal. Incredibly many sets can be matched at the same time. Size: 65 x 26 x 14 mm / 2.6 x 1.0 x 0.6 inches Frequency: 400-470MHz Power: 0.5W Channels: 16 Voltage: 7.2V Battery capacity: 2000mA Antenna impedance: 50 Communication distance: 1-3 km / 1.86-0.62 mile Package weight: About 190g Model number: mini walkie talkie Type: Two-way radio Color: Black Material: plastic Package contents: 2 x Radio 2 x Headphones Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3cm.