SY-BT1616 Headphone

Product Details:

Adjustable HeadBand – Adaptable to every head, the headphones sport a adjustable headband.
Unlimited Playtime – Support TF card for unlimited playtime if you run out of battery.
Wireless Control Buttons – Control board to play/pause, change tracks, answer/reject call control volume in one place.
AUX Input – Simply plug in the included wire to 3.5mm audio jack in cash you run out of battery and carry on.