How much does this cost to the nearest dollar?

Version B 2X15W Amplificatore Stereo Digital Audio Amplifier Amplificador Module Board Dual-Channel Ampli Electro 9-15V
Features -100% brand new and high quality -AC / DC, 2.0 / dual channel / when using, the output power of 15W +15 W, peak up 25W +25 W -Can be accessed by two 4-8Ω 10-50W speakers -A large volume of small size -High signal to noise ratio -Upgraded version of the radiator, wider and thicker, better cooling effect -Fit for Bookshelf speakers, CRT televisions, radios, and other small amplifiers Specification Working voltage DC 9-15V Power 15W +15 W Maximum power Output Impedance

Price is $4.00

Price: $3.71