Retevis RT-5R 2 Way Radio VHF/UHF 136-174/400-480 MHz Dual Band FM Ham Radio Walkie Talkie (1 Pack) and Replacement 1800mAh Li-ion Radio Battery (1 Pack) 2 pcs 1800mAh Li-ion battery; Battery voltage display function; Low battery alarm Colorful screen function: Each mode (standby, receiving,transmitting) respectively has orange, purple,blue three colors to choose Small enough including antenna to fit in a pants pocket;Three color LCD backlight is useful Wider frequency coverage, the U band extends to 520MHz, Broadcast on VHF high and UHF bands on GMSR, MURS, and FRS Range up to 3.5 miles (6 km) depending on environment and terrain