HTC UK - With USonic earbuds in-box with the HTC U11+, you'll hear impeccable audio that's tuned to your ears. Learn more - http://www.htc .com/uk/smartphones/htc-u11-plus/ | Facebook
HTC U11 may finally support Bluetooth 5.0 soon - India Today
Open Box) HTC U11 Android Smartphone With 2.5D Display, Edge Sense and Powerful Audio (6GB RAM, 64GB Memory) (Amazing Silver) - Elcytec