Bluedio R+ Legend Deep Bass Bluetooth Wireless Headphones with Mic & Micro SD Card Slot(Titanium)

Warranty and Customer Service information
1 year warranty from the date of purchase
Email Bluedio Customer Service, get answered under 24 hours
To email Bluedio Customer Service: you can click "Your Account" on Amazon, click"Your Orders", find the Bluedio order, click "Contact Seller".

Compatibility
The Bluetooth perfectly works with your smartphone, tablet or Bluetooth enabled MP3 player.

About Bluedio
Bluedio is a pioneer in portable audio device, providing solutions to professional audio and wireless communication. Bluedio always strives for perfection, fashion and simplicity, focusing on revolutionary innovations. So far, Bluedio has owned over 30 patents, highly praised by consumers over 34 countries.

Specification
Bluetooth Version: V4.0
Support: A2DP,AVRCP,HSP,HFP
RF Frequency Range: 2402 to 2480MHz(ISM BAND)
Operating Distance: Up to 10m (no obstructions)
Frequency Response: 5Hz -25000Hz
Talk Time: Up to 28 hours
Bluetooth Music playtime: Up to 25 hours
Standby Time: Up to 1300 hours (50 days)
Charging Time: 3 to 5 hours

Accessories
Micro USB charging cable
3.5mm Audio cable
Pouch
User Manual