The device can be easily turned on and off, as well as have the volume adjusted continuously, using a rotary switch. This ensures a secure operating status without complicated menu settings. Additionally, the DeTeWe Outdoor 8500 features a backlit LCD display that shows the battery status. Under ideal conditions, this PMR radio can transmit over distances of up to 10 kilometers. There are 8 main channels and 121 sub-channels available (38 analog CTCSS and 83 digital DCS). The scan function searches for active channels to help find conversation partners when switching channels or to locate other radio users within range. For hands-free operation, the DeTeWe Outdoor 8500 includes an integrated hands-free function, known as VOX mode. In this mode, the device automatically switches to transmit mode based on voice activation, eliminating the need to press the PTT button. This adjustable hands-free mode can be used with or without a headset. The auto squelch function ensures optimal communication by suppressing background noise above a certain threshold.