Brand N/A Model N/A Color Black Material ABS Quantity 1 Functions Monitor heart rate in real time Features Accurate real-time heart rate data; Standard ANT+ protocol wireless data transmission and allows various ANT+ devices to communicate; The receiving device could be a PC with ANT+ dongle or a smart phone a watch or other devices support ANT+; Ultra low power consumption; Heart rate resolution:2bpm(when the user is in the condition of quiet); Heart rate range:30~240 bpm; Wireless transmission: compatible with ANT+ ; Transmission distance: Up to 10m; Battery life:15 month(Based on the condition that the use use the product for one hour every day); Water proof: IPX4; Transmitter Size: 88 x 38 x 14mm; Strap adjustable: 65~95cm; Applicable Device: PC or smart phone that integrated with ANT+; Compatible: Apps nRF Utility Wahoo Fitness ANT+ Demo Packing List 1 x Heart rate monitor 1 x Strap 1 x English user manual Manual: http://m5.img.dxcdn.com/CDDriver/CD/sku.256722.doc