Helpful to keep fit with this product. You cannot miss it!

Features:
Suit for iphone 4S or above iphone series and Android phones with versions above 4.3.
Supporting apps: ALA COACH・ Wahoo・ Endomondo・ nRF utility・ etc.
With the chest strap based on high quality material・ it can be attached to your skin closely.
The flexible sensor belt and the adjustable belt can serve your chest better and bring more fitness and comfort when doing sports.

Specifications:
Material: Plastic & Silica gel
Color: Black
Battery: 1 * CR2032 Button Battery
Item Length: 31cm / 12.20in
Item Weight: 39g / 1.38oz
Package Size: 10 * 8.5 * 7cm / 3.94 * 3.35 * 2.76in
Package Weight: 91g / 3.21oz

Package List:
1 * Chest Belt
1 * Strap
1 * User Manual
1 * Box

Note:
Please use it after downloading the apps.