The BelFone BF-500 is a compact and durable two-way radio featuring dual PTT buttons. One PTT button is preset to a channel, while the other allows channel switching via a knob. It remains on standby for signals from both channels when not transmitting. With a 4000mAh battery, it offers extended standby time. Additional features include a built-in flashlight and battery indicator, making it an ideal analog solution for users.Long Battery LifeTwo PTT ButtonsCTCSS/CDCSSBattery IndicatorNoise CancellationBuilt-in FlashlightSpecificationsFrequency RangeUHF: 400-480MHzChannel Capacity16Channel Spacing25 KHz /12.5 KHzAntenna Impedance50ΩWorking VoltageDC 3.7V (±20%)Battery Capacity4000mAhAverage Battery Life (5/5/90)27hFrequency Stability≤±2.5 ppmDimension59(L)*36(W)*115(H)mmWeight252g (Including Battery)