Buy T55+ Smart Watch free I7S-TWS Wireless Bluetooth Earphone (T55+)+I7S

• Model Number: T55+Screen Resolution: 320×240Feature:Touch Screen, Qwerty Keyboard, Build in Flash, APP Control, IP67 waterproofOperation System:ANDROID, IOSBand Material:RubberCase Material:SteelFunction:Lighting, Calendar, Alarm Clock, Week, MONTH, WORLD TIME, Sleep Tracker, Speed Measurement, Fitness Tracker, Small Second, Calculators, Call Reminder, Answer Call, Push Message, Mood Tracker, Message Reminder, Dial Call, Heart Rate Tracker, 24 hour instruction, Blood oxygen monitorProduct Name:T55+ Smart watch series6Screen Size:1.75inchColor:White/black/gold/blue/greenWaterproof:IP67Battery Capacity:250MAHStandby time:2~3DAYSButton:Scroll/Knob functionMain function:BT wireless call function 

 I7s

• Drive: 15mm
• Impedance: 32 OHM
• Bluetooth version: Bluetooth v4.1+EDR
• Bluetooth frequency: 2.4GHz
• Power level: CLASS II, output power: 30mW
• Bluetooth Distance: obstacle free 10 meters
• Frequency response: 20-20000Hz
• Working voltage range: 3.0V-4.2V