Sound: The Syllable D900S headphones are made of active noise cancelling technology, for super bass and 3D stereo sound.
Comfortable: The headphones are designed fit perfectly for ears, suitable for sports, music enjoying, and phone call function with mic.
Large Power Capacity: The battery capacity is 65mAh lasting for about 4 hours. The storage box offers 6 times' full charged to the two headphones.
Compatible: Bluetooth V4.0 with 10M Bluetooth distance. Work with iPhone, iPad, MacBook, Android smartphones, tablets, chrome Books, Windows laptops, desktops and more.
1 year warranty is provided for Syllable D900S Bluetooth headphones.