Battery Capacity(mAh) : 2000mAWaterproof / Water-Resistant : IP65Maximum Range : 3km-5kmModel Number : RT-490Is_Display : NoWalkie Talkie Type : PortableOutput Power(w) : 3w-5wMaterial : MetalStorage Channel : 256Frequency Range : Full FrequencyDimensions : 5.32x2.16x0.84inch(13.5x5.5x2.14cm)Certification : NONEBluetooth : Yes, For programmingGPS : YES6 Bands1) 136-180MHz(RX/TX)2) 200-260MHz(RX/TX)3) 350-400MHz(RX/TX)4) 400-520MHz(RX/TX)5) 108-136MHz (AM RX) - Air Band Receive Only6) 66-108MHz (FM RX)- FM RADIOFeatures:1. Support GPS positioning information2. Support Smartphone APP programming via bluetooth3.50 sets of CTCSS, 105 sets of DCS4. Transmission time out5. Voice encryption (frequency hopping function)6. 8 steps: 2.5k, 5k, 6.25k, 10k, 12.5k, 20k, 25k, 50k7. Power saving mode8. VOX9. Support scrambling, offline function10. The channel is busy and the transmission is prohibited11. Low battery warning, battery voltage display, high and low point forbidden12. Automatic backlight13. Three channel display modes (frequency, channel number, channel name)14. Three scanning methods (time, carrier, search)15. The frequency difference direction is selectable in frequency mode16. In frequency mode, the frequency difference frequency can be selected between 0-99.9995MHz17. Channel parameters can be edited and stored in frequency mode18. 256 storage channels (128x2 groups)19. Emergency alarm20. Scramble function21. DTMF code function22. Support boot interface customization23. FM Radio24. Computer programming25. Dual frequency point waitingPackage Contain:1* Radio RT4901*Antenna1* Li-ion battery pack1*Belt clip1*User's manual1* Charger