Wireless Ad-hoc networks do not need any infrustrature, and the terminals can establish network by themselves. Therefore, they have broad prospective applications in military, disaster rescue and other scenes. However, in the market so far there are no such kinds of products that can meet the demand of broadband communications. This paper presents a new wireless Ad-hoc terminal prototype developed by the autors' research team. It uses Samsung S3C2440 ARM9 processor as main controller and Ralink RT3070 IEEE 802.11n wireless module as air interface. The device has the functionality of text, voice and video transmissions, as well as other functions.