This chest strap is designed for monitoring your heart rate. It is useful to help you keep fit.

Features:
Wireless chest strap to monitor your heart rate.
Adjustable elastic strap well fit for different people.
Support device: Smartphone and tablet with bluetooth 4.0.

Specifications:
Color: Black
Power: CR2032
Transmitting range: ﹤10m / 33ft
Net weight: 51g / 1.8oz
Package size: 10 * 8 * 3cm / 3.9 * 3.1 * 1.2in
Package weight: 66g / 2.3oz

Package List:
1 * Chest Belt
1 * User Manual (English)