Just spotted these, lowest price yet. $15 less than the previous Amazon deals. Appear to have decent reviews.
BLUETOOTH: Bluetooth aptX gives you the freedom and convenience of a wireless headphone with over 50 years of tried and true Marshall performance.
30+ HOURS OF PLAYTIME: The Major II Bluetooth keeps the music going strong with over 30+ hours of wireless playtime on a single charge. This is above the industry standard.
COLLAPSIBLE: The Major II Bluetooth is the perfect travel companion. Its collapsible design makes it easy to store when they’re not in use.
SHARING: When listening to music wirelessly, to share audio with someone else simply have your friend plug into the free 3.5 mm socket.
CONTROL KNOB: With the analogue control knob you can play, pause, shuffle and adjust the volume. Phone functionality is also included so you can answer, reject or end a call with a few simple clicks.