1.Product Information IP-VU1A(waterproof two way radio,walkie talkie waterproof,interphone) Model IP-VU1AFrequency Range VHF UHF 136-174MHz 400-480MHZ Channel 199 PLL Channel Spacing 5/6.25/10/12.5/25KHz Battery Voltage 7.4V DC (Li-ion Battery Pack) Antenna Impedance 50Ω Operating Temperature -20+60 Frequency Stability ±2.5PPM Dimensions (with Battery) 98(H)x60(W)X42(D) mm Weight (with Battery) 340g Standard Package Radio with Standard Accessories Compatible With American Military Standard(MIL-STD-810C/D/E) Features: Menu Mode VOX Keypad 107 DCS 50 CTCSS Priority Scan Channel Naming LCD Display Multiple Call Tones+1750Hz FM Radio Hi/Mid/Low Power Time-out Timer Low Battery Alert PC Programmable Selectable Squelch Level CO/TO/SE Scan Switchable Programmable Greeting Message Li-ion Battery Pack Busy Channel Lockout Frequency/Channel Scan Battery Strength Indicator Selectable Name/Frequency Display Mode Transmitter(Measurements made per TIA/EIA-603) RF Power Output 5W Modulation Type F3E Maximum Deviation ≤±5.0KHz Spurious Emission ≤65dB Below Carrier Modulation Distortion ≤5%(300-3000Hz) FM Noise ≤-45dB Receiver(Measurements made per TIA/EIA-603) Circuit Type Double-conversion Superheterodyne IFs 38.850MHz & 450KHz Sensitivity(12dB SINAD) 0.2uV Squelch Selectivity 0.15 uV Adjacent Channel Selectivity ≥65dB Intermodulation ≥65dB Spurious Rejection ≥60dB Image Rejection ≥65dB FM Ham And Noise ≤-45dB Modulation Type 16KOF3E Operating Bandwidth ≤±7KHz AF Output @ 4 Ohms 0.5W Audio Distortion ≤5% 2. Details Pics 3.Certificates