4pcs M2 Hot Smart Bracelet Wristband 0.42'' OLED Bluetooth 4.0 Activity Tracker Pedometer Heart Rate Fitness Tracker Convenient Retractable Top Fill

Convenient Retractable Top Fill

Battery Voltage: 3

Product Name: Car Recorder

5" Screen Resolution: 1920*1080 Battery Type: Rechargeable Lithium Polymer Battery Sensor: Gravity Sensor

Transmitter battery type: 1*12V 23A alkaline battery (Included)

4pcs M2 Hot Smart Bracelet Wristband 0.42'' OLED Bluetooth 4.0 Activity Tracker Pedometer Heart Rate Fitness Tracker Convenient Retractable Top FillProduct Features: Remote Notifications Smart bracelet will vibrate when receive phone, information. Even the mobile phone is in a nosy environment. Still dont have to worry about missing important calls and messages. Lighting Up Screen By Lifting Wrist It's hands free to read the time by lifting wrist. Distance Calorie Measurement Tracks your workouts like steps, distance, calories burned all day, all these show on the APPs, get a better understanding