How much does this cost to the nearest dollar?

SaferCCTV 95DT DVB-T Mini Digital Antenna Satellite Signal Finder Meter, Signal Strength Meter, Reception Systems with Compass (White)
Important Note If your antenna has an internal amplifer, (eg it should be powered by an external power supply via a DC power inserter. Make sure the power inserter is positioned between the finder and the antenna. Specifications Item 95DT Color White Eco-fridenly Material Insertion Loss ≤ 5.0dB Frequency Range Input level Range Operating Temperature 0~40°C Measuring accuracy Power Supply 9V DC or Battery pack 6x AA batteries(not included) Operation 1. Remove the finder and replace any amplifier that was disconnected. 2. Connect the antenna cable to the left F Female and the battery pack cable

Price is $22.00
Price: $21.99