Description: MMDVM hotspot with board for NanoPi NEO is an perfect replacement for zero w. The board for NanoPi NEO is without wifi module. So the hotspot come with an extra usb wifi adapter to wireless. Features: Mini and Portable, 5.6x6x4.1mm (LxWxH), two-way circulation and natural heat dissipation to avoid fan noise Support MMDVM mode: //P25/NXDN/DSTAR/POCSAG Frequency range: 144-146Mhz, 420MHz-475MHz, 842MHz-950MHz, 3xfast setting speed then raspberry zero w /2w, 't wait Replaceable folding antenna, center frequency 433MHz, External USB port for USB wifi | rtlsdr stick |Usb to Serial connection for Nextion 2.x-3.x tft screen Specifications: Power requirement: 5V2A MCU: F103C8T6 Transceiver IC: ADF7021 Programmable output power: -16dBm to +10dBm TCXO: 14.7456MHz, 2.5 PCB: 40mmx40mmx1.2mm Host: 256M RAM for NanoPi NEO, v1.4, A3 Architecture USB WiFi: RTL8188CUS OLED: I2C 128 x 64px, blue color SD Card: 8Gb Charging cable: -USB can transfer data, support 5V2A Color: Black Material: aluminium alloy Package Contents: 1 x MMDVM Hotspot adapter Only 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.