Retevis RT45 2 Way Radio 22 channel Private Codes VOX Scan Walkie Talkies (20 Pack) Durable material ensure long time use even under tough use; Good performance give you optimal range and reception 121 private codes give you safe call; Volume adjustable makes it very easy to get loud and crystal voice if you need Easy to use and came set up and ready to go; Regular AA battery supportive keep you from the battery issue even when outdoor Support to work with other radios; You can communicate with other FRS/GMRS radios regardless of brand by being on the same channel and privacy codes FCC accepted and license-free 2 way radio; 1 year warranty and 30 days no reason to return