BlackZ 2026: fuller bass and a kit to take with you

The BlackZ 2026 Bass Bundle combines black KZ Castor Pro Bass Up earphones without a microphone, an extra blue QKZ T1 cable and a black KZ Letter Case. A practical setup for listeners who enjoy bass presence and want a spare cable and a place to store their kit.

Castor Pro Bass Up: tune it to your taste

With two dynamic drivers per side, the Bass Up edition gives low frequencies extra presence. Tuning switches let you adapt the response to your preferences, whether you are exploring playlists or following instruments. The earphones include their original 3.5mm cable without a microphone.

Blue QKZ T1: an extra cable for your earphones

The eight-strand QKZ T1 features a braided finish, connectors compatible with the Castor Pro and a 3.5mm plug. It is supplied as an additional cable, so you can switch cables or keep a spare close at hand. This version has no microphone.

KZ Letter Case: keep your kit together

The black case with its embossed KZ logo gives your earphones and cables a place to stay after use. Compact and easy to carry, it helps keep the whole set organised in your bag.

What is included

• 1 pair of black KZ Castor Pro Bass Up earphones with the original 3.5mm cable, without a microphone.
• 1 additional blue QKZ T1 cable with a 3.5mm plug, without a microphone.
• 1 black KZ Letter Case.