Sleek Audio SA6 & W1 adaptor

The basics

The noise-isolating SA6s are in-ear headphones with modular audio components. The W1 adaptor provides a transmitter/receiver combo that works with any standard music player, streaming music at CD quality (44kHz, 16-bit).

The good

Kleer might sound like a miracle kitchen detergent (now with extra polydichromalene!) but it’s actually the best way to stream sparkling clean digital tunes without greasy interference or bacteria-laden compression. Sleek Audio’s wireless Kleer adaptor fixes to any MP3 player or (3.5mm-jacked) mobile phone, feeding the beautifully precise SA6 earphones with hiss-free harmonies. The earphones themselves are a masterpiece of miniaturisation, with an ultra wide balanced armature driver, and configurable bass ports and treble tips to personalise your listening pleasure. Sound quality is suitably dramatic thanks to enough low-end grunt to make your toes curls and top notes that are fizzier than a bottle of vintage Krug.

The bad

Begone with your negative thoughts! The combination of squeaky-clean wireless and customised sound reproduction mean render the Sleeks virtually criticism-proof. If we were to feel critical, and honestly we’re not, the WA1 adaptor does sit on your neck a bit like a cybernetic alien parasite. But in a good way.

The bottom line

Listening to Kleer audio after Bluetooth is like suddenly discovering you can speak a new language previously reserved for supermodels, Hollywood A-listers and generous master brewers. The best wire-free music experience that money (plenty of it) can (just about) buy.