Color BlackNumber of Channels 16Number of Batteries 1 Requires Lithium Ion Batteries.Voltage 3.7 VoltAbout This ItemPackage IncludesPackage of 2 walkie-talkies. Detachable antenna Rechargeable batteries. Charger and headset with microphone for each walkie. An original headphone with a patented ergonomic hearing aid design provides users with lasting comfort.Energy Saving and Time Saving Working voltage: 3.7V 1500mAh (about 8 hours of use), standby time up to 72 hours. Long lifespan, power saving features to extend battery life: low battery alarm to remember to charge.DCS, CTCSS and VOX Functions16 Channels, Maximum 3km range, Noise Reduction Function 50 CTCSS / 105 CDCSS. Excellent Sound Quality and VOX Function: Fresh and clear sound quality with adjustable volume; Ensures the audio is loud and clear even in noisy places.Built-in LED Flashlight DesignTo make this walkie talkie set usable in the dark or in emergencies.Wide ApplicationsIdeal for outdoor adventures, hunting, nightclubs, Bars, paintball, security, restaurants, hotels, bouncers, warehouses, party, building construction, stage, amusement park, hiking, studio and other environments.