RFID wristband, RFID bracelet, flexile and steady in use, waterproof, used for hospital. Wristband Label is made of POLY material and etching antenna. There are several HF chips for your selection, such as Mifare 1 S50, Mifare Ultralight, I CODE SLI, Ti2048 and so on. The HF chip has an advantage that can store large information. Wristbands Label is specially designed for the application of hospital, jail, logistic, patient tracking and so on. Wristband is only one time use. One may destroy the wristband if he wants to take it off. Specification: 1) Optional Chips: Mifare 1 S 50; Mifare Ultralight; I CODE SLI; Ti2048. 2) Operating frequency: HF 13.56MHz 3) Reading distance: Up tp 50 mm 4) Physical: Thickness: 0.54 mm +/-0.04mm; Width: 25 mm +/-0.2mm; Length: 305 mm +/-1mm; Weight: 4.0 g +/-0.3 g 5) Thermal: Storage: -10 to 70C; Operating: -10 to 80C 6) Specials: For volume of order over 25K pieces the cover shell could be silkscreen printing customer's logo with 1 color. For customer defined special label matiral color, order quantity should more than 100k.