Meteor SMART MT-S2 & MT-S2+ HRM Activity Tracker & Multi-Function Wristband - Get Walking UK
Microzu.com - https://microzu.com/sport-wristband-heart-rate-monitor-ip67- smart-bluetooth.html This S2 smart wristband is equipped with a high-performance AMICCOM 8107V microchip and built-in 90mah Lithium-ion polymer rechargeable battery. Some ...