Item Type: Blood Pressure Material: ABS Commodity Quality Certification: 3C Brand Name: ELERA Model Number: YK-BPW-1 Application: Wrist Size: 8*7.5*3CM Application: Wrist is_customized: Yes Material: ABS Model number: YK-BPW-1 Color: Pink , Green , Blue , Grey , Purple Power: 2 AAA alikaline batteries N.W.: 125g (with wristbrand ,without battery) Memory Quantity: 99 Groups For wrist circumference range: 13.5cm-19.5cm Intelligent Pressure: Yes