Retevis RT-5R Walkie Talkies 5W 128CH VHF/UHF 136-174/400-520 MHz Dual Band Dual Standby FM Transceiver 2 Way Radio with Earpiece Ham Amateur Radio (2 Pack) and Throat Mic Headset (2 Pack) Retevis RT5R have an alarm function and an FM radio ,useful in an emergency FM functionyou wont boring in your trip,and you can know more things even you are driving 5W/1Wpowerswitch: AllowyoutochoosebetweenHighPowertomaximizerangeorLowPowertoconservebatterylife Keypad Lock Helps prevent settings from being accidentally changed, limiting unnecessary downtime Including throat mic and original earpiece:Great for outdoor use, whether camping or cycling or enjoying a hike