2014 Mini Fashionable Bluetooth Watch Mobile Phone Smart Watch Qt-Ef-1

Main function :

A: Caller's name and number display (name and number)
B: Unconnection warning after 5-10M(vibration warning)
C: Incoming vibration for alert 
D: Answer/conversation/hangup
E: Earphone support.
F: MP3 play support.
G: Synchronization Telephone's contacts
H: Time display

Technical Specification:

A:compatible to Bluetooth 2.1 (standard)
B:Class 2 standard (10 meters)
C:Working Frequency: 2.4GHz
D:workable distance 5-10M
E:auto energy-saving mode
F:low power consumption mode/ high speed operation mode
G:safety certificate, data encryption

Specifcation :
Product specification 
Bluetooth version: V2.1
Working voltage: 3.6V-4.2V
Working current: 45mA
Working frequency: 2.4GHz
Charging time: 2 hours
Standby time: 72 hours
Cell type: lithium ion battery
 
External charger specification  
Input voltage: 110~240V
 Frequency: 50Hz
 Input current: 0.15A
Output voltage: 5.7V
Output current: 600mA