Main Functions: Time-Division Multiple-Access(TDMA) digital function; Compatible with other Tier I and II; Comply with digital protocol ETSI 102 361-1,-2,-3; IP67 waterproof Analog and digital combined; Dual band,dual display,dual standby; Up to 3000 channels; 10000 contacts; Color LCD display; Transmit interruption Group call match(Promiscuous); Private call match(Promiscuous); Dual time slot for repeater; Dual time slot for point to point; Lone worker Encryption function; Single call,group call,all call; Remote kill/stun and activate; 8 hours of recording Message function CTCSS/DCS Programmable functional keys Item number: -UV390plus General: FrequencyRange: 136-174Mhz &400-480MHz Channel No.: 3000 Antenna impedance: 50 Operating Voltage: 7.4 V DC Operating Temperature: -30C~+60C Battery: 2200mAh Li-ion Transmitter: Output power: 10W(H) 1W(L) Vocoder type: TDMA Frequency Stability: 1.0 PPM Adjacent channel power: -60dB Spurious Radiation: Antenna:9KHz-1GHz , -36dBm 1GHz-12.75GHz ,-30dBm and noise: -40dB *12.5KHz 4 Digital Mode: 12.5KHz(data only):7k60FXD 12.5KHz(data+voice)7k60FXE Receiver: Digital sensitivity: 0.25uV (BER 5%) Audio power: 1W Autio response: =1dB-3dB Adjacent Channel Selectivity: -60dB *12.5KHz Voltage: AC110-240V Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Material: ABS+metal colour: black Package Contents: 1 x intercom 2 x antenna 1 x battery 1 x back clip 1 x charger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.