These new low-cost true wireless headphones from Sennheiser go by the name CX True Wireless and, with a recommended retail price of 129 euros, are cheaper than the now discontinued CX 400BT and also remain well below the price of the Momentum True Wireless 2.
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Sennheiser CX 400BT True Wireless
True Wireless in-ears with a 20-hour battery life
Sennheiser want to demonstrate that - in addition to their excellent Momentum True Wireless, which are right at the top of the charts both in terms of hit lists and price - they are quite capable of catering to the upper mid-range of the market....