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;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. 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. 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. 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. 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; FCC ID: 2ARTCARAR.

Impedance: 50 Ohm. International Protection Rating: IP65. Item Weight: 0.01 Ounces. Number of Batteries: 4 Lithium Ion batteries required. Water Resistance Level: Water Resistant. Voltage: 3.7 Volts. Tuner Technology: UHF. Frequency Range: 406.1-470 MHz. Number of Channels: 16. Brand: Arcshell. Country of Origin: China. : B071WBN7TT. Manufacturer: Arcshell. Date First Available: June 1, 2017. Batteries: 4 Lithium Ion batteries required. (included). Item model number: AR-5. Package Dimensions: 9.37 x 7.05 x 4.65 inches; 0.01 Ounces. Is Discontinued By Manufacturer: No.