I will get back to you on that and let me call my son I have Ben in hospital with my daughter and haven,t been on I will find out son thanks for asking
i cannot reach my son yet because he is at work and I can tell you that our whole family would have different walkies and go hunting and fishing and camping and they would pick each other up and other walikes too. I apologize for not knowing more. if you win and do not want it I will understand and you can send it back to me and I will find more info and relist, but still knowing even this these are a great deal on free shipping, if I would not offer free shipping I would understand wanting to know everything and I wish I did know but I just know what my son told me when he was here and that they will pick up a lot of other radios and cb's. thanks and I hope you will still continue to watch and bid.