JBL is a known brand when it comes to emitting powerful bass sound and the T50HI in-ear headphones are no exception. Lightweight, compact and comfortable, the headphones feature a pair of 8.6 mm drivers built in the durable earpieces. These drivers produce a deep and powerful bass effect sound that is seen resonating in concerts, arenas and recording studios across the world. The 3 sizes of ear tips that are included allow you to choose a size that gives you the most comfortable listening experience even for longer listening periods. <> ※Speaker Driver Unit - 8.6 mm ※20 - 20kHz Frequency range, 30±4.5 ohms Impedance ※Disclaimer - "The product images shown are for illustration purposes only and may not be an exact representation of the product."