Mini Walkie Talkie 2 Pack 400 470MHz 3W Two Way Radio with Earmuff Headset USB Powered for Construction WarehouseHigh performance speaker and stable transmission clear communication.Mini size for easy portability, you can hide it wherever you . Transceiver and earpiece are both designed with clip for easy attachment. Also come 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 at supermarkets, shopping centers, hotels and other .The LED light helps you easily know the status of radio, in charging, active or signal receiving status.Countless sets can be matched at one time.Size: . 65 x 26 x 14 mm / 2.6 x 1.0 x 0.6 inchFrequency: 400-470MHzPower: 0.5WChannels: 16Voltage: 7.2VBattery Capacity: 2000mAAntenna Impedance: 50Communication Distance: 1-3 km / 1.86-0.62 milePackage Weight: About 190gModel Number: mini walkie talkieType: Two Way Radiocolor:BlackMaterial:plasticPackage Contents:2 x Radio2 x EarphoneOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.