Retevis RT1 2 Way Radio 10W VHF 16CH 3000mAh Two Way Radio with Earpiece(2 Pack) and 2 Pin Speaker Mic (2 Pack) 16 memory channel allow each group set up their own channel and reduce the signal interference 10W/5W switch will keep your smoothly long range communication in various working environment 2 pin speaker mic will provide you real hands free and don't need to hold the radio body 2 Antenna (High gain antenna and Common antenna)increase your distance and don't need to pay more Simple and Convenient return process;1 year warranty and 60 days warranty for accessories;within 30 days you can apply for a return