Heart Rate Monitor Chest Strap to transmit data to your phones, computer, GPS watch for checking your health and fitness goal. You can track heart rate in real-time with it. Features of the heart rate chest belt include high sensitive, lightweight, adjustable and comfortable belt. 

Parameter: 

- Powered by 1 x CR2032 battery ( included ) 
- Adjustable belt circumference: 25.98 - 39.37 inches 
- Bluetooth 4.0 
- Suitable for iPhone 4s / 5 / 5s / 6 / 6 Plus / the new iPad / iPad 4 / iPad Mini / iPod Touch 5 

Note: 

 
Product Size(L x W x H): 6.80 x 3.60 x 1.50 cm / 2.68 x 1.42 x 0.59 inches 
Package Size(L x W x H): 17.70 x 7.50 x 2.50 cm / 6.97 x 2.95 x 0.98 inches

Package Contents: