ROCKBROS Bluetooth ANT+ Sports Fitness Arm Heart Rate Monitor IP67 WaterproofProduct details: Item number: 290004001 Main unit size: 46*35*13mm Arm strap size: 22*352mm Battery: 90mAh Lithium Battery Charging method: Magnetic charging Charging cable length: 75cm Battery life: 16hours Warranty: 365days Operating temperature: 10~50C Connection method: Bluetooth & ANT+ Waterproof rating: IP67 Material: Main material: PC ABS(shell), TPU(Button) Arm strap material: Lycra + Velcro Weight: 12g(main unit) + 13g(charging cable) +

or simply using your bike for daily commuting

this mini-red light is ideal as an accompaniment to your leading rear light

Whatever your preferences

Easy Installation & Splash Resistant

or trade fair stand

Ready to hit the road

Engineered with 250g triple-brushed thermal fleece lining to lock in body heat while maintaining breathability

Thanks to a USB port

Ultra Lightweight Construction

Item number: 38210005001

Sporty Unisex Design

alarm stops