Retevis RT21 Updated 3000mAh Long Range Two Way Radios with Earpiece, SOS Alarm & 16CH - 4 Pack Walkie Talkies for Security, Cruise, Camping, Events and Outdoor Adventures

New Version-3000mAh Large Capacity Battery Previous page Long battery life meets the needs of different shifts, reducing downtime Ultra-Clear Long Range Reception Powerful penetrationHigh gain long antenna designup to 300,000 square feet or 25 floors Next page 1 Long Distance 2 Long Distance Clear sound These radios provide high quality clear sound with surprisingly good range, ensure team members communications more understandably and efficiently Easy to carry RT21 portable two way radio, each walkie talkie is equipped with a strong back clip, you can pinch it on your pocket double safety 50 CTCSS & 208 DCS will keep your safety and secure calls, and easy to choose your own CTCSS. Easy-to-use walkie-talkies There are no complicated buttons that are difficult to understand; RT21 have been set up well ,and they can work with each other when out of the box Provide You with Clearer and Safer Communication Can RT21 talk to each other? Can they talk to other brands of walkie-talkies? Yes, they are ready to use out of the box and can talk to each other by selecting the same channel. RT21 cannot talk to other brands of radios What to do when the walkie talkie prompts"please change battery? Please note that the prompt tone is "please charge battery", not "please change battery"just place the walkie talkies on the charging base, the charging indicator shows red to indicate charging, and green indicates that it is fully charged Can the RT21 talk directly to the H-777/RT22/RT68？ Yes, the RT21 can talk directly to the H-777/RT22/RT68 and all Retevis FRS 16-channel radios and can talk directly to all Retevis FRS 2-channel radios What accessories are available? We offer earpieces, microphones, clips and batteries for the RT21