Long working hours; built-in 700mAh rechargeable lithium battery and can be charged at any time through a DC5V cable; the charging effect is good and fast; it can be fully charged in 4-5 hours; battery life is up to 3 years; long-term power loss will seriously reduce battery life; it is recommended to charge frequently. High reception sensitivity; retractable 6 sections antenna and an 9.8 feets long external antenna; you will clearly see the signal improvement when you use an external antenna, which is very suitable for poor reception indoor. Digital Pocket Radio; you can manually tune and store stations; you can also see the signal strength of each radio station; you can also enjoy stereo broadcasting when you plug in stereo headphones; lock key to prevent you from misuse; orange backlight will automatically turn off to save your battery. Full band radio; AM FM SW AIR CB VHF ; VHF-N can receive coast; train; racing; weather channels; VHF-W can receive campus radio and TV sound; each band can store 50 radio stations. Well AIR reception; under good AIR band reception conditions it can receive aviation broadcast within tens of kilometers; and can even receive tower broadcast at a short distance.