Bluetooth 4.0 wireless Heart Rate Monitor For iPhone 4s 5 Strava Endomondo

Features:
Accurate real-time heart rate data. Compatible with Bluetooth 4.0 technology, wireless data transmisson. Work for  iPhone 4S, for iPhone5, for iPod Touch(5th generation), for iPad (3rd and 4th generation). Work with Android phones(Android 4.3 also has more systems and Bluetooth 4.0 LE smartphones).
Descriptions:
Ultra low power consumption, battery life will last up to 1 year with 1 CR2032 coin cell type battery.
Specifications:
Material: ABS Is waterproof: Yes Color: black Size: 65*35*10MM Battery: 1 CR2032 battery(not included) Length adjustment range: 70-120CM Package: 1 x Bluetooth 4.0 Heart Rate Monitor