It is compact and ,easy and comfortable to hold in hands Each radio is with belt clip The frequency range is UHF 400-470 MHz, with 16 pre-programmed channels, and each radio has the same frequency in 22 ready-made channels The charger is equipped with an A-type power plug with a working voltage of 110 V to 240V. It takes about 2.5 hours to fully charge The battery life depends on the transmission time, it takes about 5 to 96 hours The high-quality built-in speakers in the radio can emit loud and clear sounds Push-to-talk button and built-in microphone in the radio Suitable for security , maintenance , construction , fire departments, warehouses, factories, kitchen staff, hotels Category: Machine Type: Amateur Category: Handheld Frequency range: 400-470 (MHz) RF output power: 0.5 (W) Number of channels: 22 (a) Theoretical communication distance: 10 (km) Working voltage: 6 (V) Frequency stability: 0.5 (ppm) Theoretical battery life: 24 (h) Talk time: 5h Standby time: 4 days Monitoring function: none Weight: 85 (g) Communication : no card Battery type 4* AAA Alkaline/rechargeable batteries (DC 6.0V) (The battery is not included) The battery voltage: 1.5V Colour:black+orange Material:plastic Package Contents: 2 x Walkie Talkies 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.