These Sennheiser HD 25 Headphones are a set of closed-back monitoring headphones designed for DJs. The HD 25 have been redesigned featuring the classic split headband with a single-sided connection cable and a flip-away earcup for convenient single-sided listening. One of the most iconic pieces of DJ gear. Great for mixing in the booth or listening to tunes on the sofa. With a frequency response of 16Hz to 22kHz an impedance of 70 ohms and a maximum SPL of 120dB the HD 25 headphones are ideal for any monitoring application; whether broadcasting live recording in the DJ booth or just travelling from venue to venue.