Brand N/A Model O1025 Color Black Material Plastic Quantity 1 Functions Heart rate monitor Power 1 x CR2032 battery (included) Features Heart rate monitor supplies the accuracy heart rate; Bluetooth V4.0 achieve wireless data transmission Works with Iphone 4S / Iphone 5 Ipod Touch 5 The New Ipad Ipad you can manage your sports status via your iOS devices; Compatible with the mainstream exercise heart rate monitor software such as Wahoo Fitness Fitcare 60Beat RunKeeper MapmyRUN Strava MapMyRun Endomondo Sports Tracker; Low power consumption 1 x CR2032 battery can use up to 1 year Packing List 1 x Heart rate monitor 1 x Strap 1 x English user manual