Retevis H-777 Two Way Radio Signal Band UHF Rechargeable Walkie Talkies(6 Pack) USB charging base without adapter; 16 Channels;rechargeable battery;Voice prompt Crystal clear voice transmission and great battery life empower the group with a convenient communication way Emergency alarm and built-in led torch provide more convenience in special environment High or Low power feature allows the user to select high or low power according to the actual situation Simple and Convenient return process;1 year warranty and 30 days no reason to return including the accessories