Experience clear audio wherever you go with these Razer Hammerhead wireless in-ear headphones. Custom-tuned 10mm drivers provide loud sound and deep bass, and the 160 mAh rechargeable battery provides up to 8 hours of listening time. The neckband and magnetic clip on these Razer Hammerhead wireless in-ear headphones ensure a secure fit. Included in Box: Razer Hammerhead Bluetooth Headset Certified Refurbished, 4x Interchangeable ear-tips, Carrying pouch, Charging cable, and Magnetic shirt clip