16 Channel Walkie Talkie：16 channels available, perfect for coordinating multiple teams simultaneously. Perfect for construction, security or outdoor recreation. Long-lasting Rechargeable Battery：1500mAh rechargeable battery and 2 charging stations to charge the 2 walkies simultaneously. Fast charging and 8-72 hours of battery life depending on your usage. Emergency Alarm Function：Scanning; High brightness flashlight, will keep you lit even in the dark of night. Easy to use, even for children. Just press a button to talk. 1-3km Effective Range：The long distance walkie talkie can transmit and receive up to 3km, keeps you connected to friends and family. Perfect for field survival, cycling, hiking, etc. Perfect in Many Situations：Can be used in many situations, from directing teams on a construction site, to communicating between security guards, or to communicating remotely while hiking. The walkie talkies are not compatible with other types of walkie talkies.