Small and convenient size;it easily fits on your hand;it measures 4.53 inches in height;1.30 inches thick;2.36 inches in width;6.3 oz light-weighted;solid built; easy to operate for all ages; each radio has a removable belt clip 16 channels;each radio has identical frequency on each of the 16 channels out of the box;16 position mechanical rotary switch channel selector;when you turn the knob to change the channel,a synthesized voice will tell you the channel number Each radio comes with a 1500mAh rechargeable Li-ion battery and a charging dock; the charger comes with an AC wall-wart Type A plug and works in 110v-240v; it takes about 2.5 hours to fully charge; battery life is determined by transmit time;it lasts around 8 to 96 hours on a single charge depending on how much you transmit;you can charge the battery alone or charge the radio with battery installed; Arcshell AR-5 has a USB Type-C charging port now High quality built-in speaker on the radio provides loud and crystal clear sound; Push-to Talk button and built-in mic on the radio;each radio comes with a single-earbud style earpiece(foam piece included) with a microphone built in and a Push-to-Talk button; earpiece plug is K-type of 3.5mm plug and 2.5mm plug;when you plug in the earpiece,all sound goes to the earpiece and the radio speaker is silent;the radio has a VOX function for hands-free operation Range is very dependant on terrain;up to 5 miles with no obstructions,less in congested area;work great in a commercial construction or around the house;suitable for security team;maintenance team; construction team; warehouse; factory; police; airsoft; kitchen staff;hotel;retail store;at the school;events communications;roadtrip while driving in different cars;family camping and hunting;on a cruise ship;in mountains;it works worldwide;you can add as many as you want and they work great together 【Introducing the Upgraded Arcshell AR-5 Exclusive Version!】Your favorite walkie-talkie just got even better! Building on the success of the million-plus Arcshell AR-5 two-way radios sold, we now proudly present the upgraded and exclusive Arcshell AR-5. Taking your valuable feedback into account, we have enhanced this version to deliver an unparalleled communication experience. 【Upgraded Battery Design】We heard you! Our robustly redesigned battery contacts ensure longer-lasting stability and address any previous issues of battery expansion. Say goodbye to battery expansion and breakage, and say hello to a power-packed performance. 【Upgraded Charger】No more charging woes! The previous charger is difficult to get good contact with the metal plates. We've completely redesigned the charger to ensure seamless contact with metal plates, providing a reliable and hassle-free charging experience every time. 【Added USB Type-C Charging Port】Stay connected on the go! The inclusion of a USB Type-C port in our EXCLUSIVE version means you can now charge your radio with ease using a power bank or even in your car, keeping you connected wherever life takes you. 【Enhanced Earpiece Quality】Communication has never sounded so good! We've upgraded the earpiece for improved durability and audio quality, ensuring crystal-clear conversations in our EXCLUSIVE Version. Experience the incredible difference with the all-new Arcshell AR-5 Exclusive version – the ultimate walkie-talkie upgrade you won't want to miss! FCC ID: 2ARTCARAR