<b>Retevis RT21 is the enhanced version of the usual radios</b><br>RT21 have the big body than the others,so that take it outside and no worry about the fall apart.<br><br>RT21 have the high-gain antenna,not need to order the replacement because worry it will fell apart.<br><br>RT21 have the solid shell and belt,not worry the belt broken so that walkie talkie falls.<br><br>RT21 have the superior cell and keep great transmission for a long time using.<br><br> Suitable for hotels, restaurants, construction sites, factories, etc.</b><br><br><b>Features:</b><br>Memory Channel: 16<br>Low battery alarm <br>Emergency Alarm<br><br>VOX Function<br>Battery Save Function<br>English/Chinese Voice Prompt<br>br><b>Package Details:</b><br>10 x Retevis RT21 2 Way Radio<br>10 x Li-ion battery<br>10 x Charger<br>10 x Hard Belt Clip<br>10 x Hand strap<br>10 x Air Acoustic Earpiece<br>2 x English user manual<br><br><b>Note:If you have the H-777 walkie talkie, you also want to order another great radio to work with the H-777,please buy RT21 with confidence,they can work together<b>Our walkie talkies is only FRS walkie talkies;the FCC ID is 2AAR8RETEVISRT21;our walkie talkies meet FCC rule part 95</b>