Sennheiser CX 400 BT
The Sennheiser CX 400 BT true wireless earbuds fit securely, sport a low-profile look, and deliver clear sound with depth and detail. Wire-free earbuds with top-shelf sound: With the CX 400 BT true wireless earbuds, Sennheiser adds value by taking some features away. What do I mean by that? Their super-premium Momentum TW 2 in-ears are the best-sounding true wireless earbuds I've ever heard. And these headphones feature the EXACT same drivers and sound signature.