Feature: 1. One Click Automatic Pairing: Different brands of machines can be easily paired and used as frequency meters for some devices. Using the same model of machine can achieve wireless frequency replication for the entire machine. 2. Dual Channel Listening at the Same time: In the city, the UHF band brings clear calls; in the outdoors, the VHF band allows you to have longer calls. At the same time, it supports dual frequency and dual defense. Multi-band full-band transmission and reception, AM/FM aviation band reception, allowing enthusiasts to listen to the aircraft frequency band near the airport. 3. Alarm Function: The long range walkie talkies supports flashlight flash and sound alarm functions in 3 modes(On-site Alarm mode, Send Alarm Code mode, Send Alarm Sound mode). 4. Convenient Charging: The walkie talkies comes with a 2200mAh battery that can be charged directly via the Type-C interface. And you can charge the walkie talkies by the included seat charger conveniently. 5. Versatile Use: The walkie talkies for adults is suitable for all kinds of situations, such as karaoke bars, nightclubs, hotels, malls, supermarkets, schools, restaurants, warehouses, logistics, outdoor camping, hiking, resorts, emergency rescues, etc. Specification: Effective distance: 1-8 kilometersBattery type: Polymer lithium battery, 2200mAhStandby time: 168 hoursCharging method: TYPE-C charging/dock chargingUsage time: 120 hoursRated voltage: 7.4VNumber of channels: 999 channelsNumber of radios: 20 of themheadphone jack: K HeadAntenna interface: SMA female headProduct weight: About 250g (including antenna and back clip)Product size: 122* 63*33mm (excluding antenna) Package List: 1 x Walkie Talkie1 x Battery1 x Antenna1 x Back Clip1 x Charging Base1 x Wrist Strap1 x Users Manual