Retevis RB17 Walkie Talkies Long Range,Heavy Duty 2 Way Radios with 4400mAh Large Capacity Battery, USB Charging Handsfree,Portable Two Way Radio for Adults Camping Hiking(4 Pack)

* 4400mAh super battery life walkie talkie;can be used for a week without frequent charging; suitable for outdoor exploration and shift * 5-port charger and 2-in-1 USB charging cable can charge 10 RB17 walkie-talkies at a time; more efficient and faster; also easy to carry and store * Sturdy and durable shell can resist collision and fall; can be used for a long time and not easy to lose * Clear sound 2 way radios; squelch function provides a quiet environment for your communication * Long range two way radio;emergency alarm helps you to ask teammates for help in time when you are in danger * Hardware Version Identification Number is RB17; and the certification number is 23137-RB17