Vineyuan C5Plus Walkie Talkies with Earpiece 2 Pack UHF 400-470Mhz 2000mAh Rechargeable Long Range Two Way Radios

C5Plus Walkies talkie can work together with other brands' similar ones by selecting the same channel on each single frequency UHF 400-470MHz Specifications: Model: C5Plus Frequency Range: UHF 400-470MHz Frequency Stability: ±2.5ppm Channel Capacity: 16 Channels Battery Type: 2000mAh Rechargeble Li-ion Battery Operated Voltage: 3.7V DC Antenna Impedance: 50? Operated Temperature: -20°c-+50°c Plug: 110V-240V AC Wall-wart Type A Radio Dimensions (without antenna): 4.2 x 2.2 inches Antenna Length: 5.8 inches Radio Weight (with battery/antenna):0.81lb Transmitter: RF Power Output: ?5W Modulation Emission: 8-12mV Spurious Emission: ?7.5uW Adjacent channel power: ?-65dB ?-60dB SNR(W/N): ?-45dB ?-40dB QT/DOT(W/N): 0.7±0.1KHz/0.4±0.1KHz Transmitting Current: ?1.2A Receiver: Sensitivity (12dB SINAD): ?122dBm Intermodulation(W/N): ?65dB/?60dB Adjacent Channel Selectivity: ?65dB/?60dB Audio Power : 0.4W (8R Load) Audio Distortion: ?10% Receiver Current: ?380mA Functions: 50 CTCSS/105 CDCSS VOX/Beep/QT/TOT English and Chinese Voice Prompt PC Programming Battery Save Battery Low Alert Channel Time-out Timer Busy Channel Lock Channel Monitor Scanning Function High or Low Power Selectable Package includes: 2*C5Plus Walkies talkies 2*2000mAh High Capability Li-ion Batteries 2*Antennas 2*Desktop Chargers 2*Belt Clips 2*Earpieces 2*User's Manuals