Syllable G15 Foldable Wireless Bluetooth V2.1+EDR Headphone Over Ear Noise-Cancellation Stereo Headphone with 3.5mm Audio Cable and Lithium battery: 300 mAh, Working Time 8 hours, Long Standby Time of 70 Hours for IPhone 4 4s 5 5c 5s Samsung Galaxy S4 S5 Note 3 phone - Black