kv4p HT is a homebrew VHF radio that makes your phone capable of voice and text communication completely off-grid with at least a Technician class amateur radio license.The radio simply plugs into the USB C port on your Android smartphone and transforms it into a fully-fledged handheld radio transceiver.It's small enough to fit in your pocket and take anywhere, and since it has no internal battery it's the perfect radio to put in a go-bag or your car's glove compartment.Crystal-clear 22kHz 8-bit ADC/DAC audio, with filters and squelch.Texting with notifications just like SMS - radio-based APRS messaging (not just location) with built-in 1200 baud modem.Scan through unlimited memories and groups.No battery means nothing to charge except your phone.1 watt transmit can go miles yet sips your phone's battery.Accessibility options: live closed captions (on supported phones), turn off animations, sticky PTT with haptic feedback.Colour:blackMaterial:PCB+PlasticDue to different batches, there may be differences in product appearance and printed text, which will not affect usePackage Contents:1 x KV4P-HT PCBA with CASE1 x VHF SMA ANTENNA1 x U-shaped OTG ADAPTOR(C female-C-C)1 x Sticky gel padsOnly 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.