Bluetooth specification: Version 4.0
-Built-in Rechargeable Lithium Battery.
-Bluetooth Profile supported: Hands free
Range of Frequency: 2.4 GHz -
Normal Charging Time: 2 hours.
Standby time: about 20-30 days when no connecting to phone, about 72 hours when connecting to phone. -
Special designed 2-pin clip on USB charging cable, charges from PC, laptop, or USB chargers.
-Effective distance 5-10M
-Starting electric current:20mA
-Low power consumption and easy operation. -
Charging cable length: 75cm
-Bracelet band width: 20~38mm
Healthy Bracelet,CALL/SMS reminder for android smartphones only
Sleep Monitor;Pedometer Calculate steps
IP67 Waterproof for swimming,shower outdoor sports
Smart Alarm modes
21days long time standby