How much does this cost to the nearest dollar?

Waveshare Passive NFC-Powered e-Paper No Battery Required No Messy Wiring Novel Passive NFC Tech Wireless Powering & Data Transfer APP Provided Pixel,Black& White Color
Passive NFC-Powered e-Paper, No Battery, Wireless Powering & Data Transfer 2.9 NFC-Powered e-Paper.Adopts novel passive NFC technology. No battery required, no more battery life trouble. APP is provided,Easy to use. APP is provided,Easy to use. Protective ABS Case,Nice&Light Weight. Protective ABS Case,Nice&Light Weight. NFC-Powered Display Refreshing，Passive NFC solution, No Battery Required, No messy wiring, stable operation 3.How it works To refresh the display content, use a smart phone with NFC function, or an NFC

Price is $29.00

Price: $28.99