How much does this cost to the nearest dollar?

Xiegu X6100 HF Transceiver, 10W Full Mode SDR Radio Supports Bluetooth with 3.6 LCD Screen Black
Analog – SDR Radio Software-defined radio (SDR) system uses software for the modulation and demodulation of radio signals. Processing via a computer or other digital devices with software, the X6100 can provide you more info in real-time, complete complex operations and process data faster. 5W Upgrade to 10W High Power From 5W to max 10W, the Xiegu X6100 is a more powerful RIG than the X5105. In general, a higher wattage allows for greater range. Working with the power amplifier, the X6100 can meet your long-rang talking requirement. 3

Price is $639.00
Price: $639