How much does this cost to the nearest dollar?

HiLetgo Mini Stereo AMP Audio Amplify Board Digital Portable Ampli Module Dual Channel Amplifier Class-D 12V DC
Parameter Work D Class Quiescent current 20mA Efficiency 90% Rated output power 10W +10W (8Ω) response 20Hz to 50KHz Operating voltage DC Recommended power supply voltage 12V PCB board size (40 * 40) mm Power Interface 5.5 socket NOTE 1. The power supply voltage can not exceed 12V2. The speaker is the 4 lines are completely independent, do not allow a total of access! As long as one of the circumstances, burning IC immediately Package includes 1x Mini Amplifier Board Adopts chip, No filter, low static current, EMI, power

Price is $7.00
Price: $7.49