Come and see our amazing products. This fitness tracker has multiple features: Sports pedometer, Calorie consumption, Kilometers, Sleep monitoring, Long sleep, Sleep quality, Silent vibration alarm, Calls to remind, etc. It supports both Android and IOS system with Bluetooth 4.0 technology. We can do a laser engraving of your logo on the metal clasp or silkscreen on the wristband. Pls confirm further with us if any query about packing info, inventory status and time schedule.