Put your smart phone gently near by the , chips' data will input to the smartphone directly, No need internal battery. compatible and programmable with all -enabled smartphones and devices. Easy to carry , waterproof and wear-resistant. And made of material with built-in high- . It is also responsive, which makes every breeze. Features - Color: White. - Material: ABS. - Size: 3.80 x 1.60 x 0.20cm/ 1.49 x 0.63 x 0.08 inch. - Due to its multiple functions, the portable are good your families and friends, providing them with intelligent advantages. - Because of readable and writable features, sticker tags allow people to change and read the data when you want, the chip inside can quickly read the data. - Make the most complicated tasks simpler in just one touch. - These tags can be used to share , pages, launch applications and change mobile settings. - Compatible and programmable with all -enabled cell phones and devices. Package list: 5 x tags