Bought to replace a 3 year old set that are wearing out, these earphones don't disappoint. A robust build, good battery life and a nice pouch in which to store them. The sound is excellent using apt-x; the bass is punchy and controlled; the mods and treble both very good. An added bonus is the included cord with which one can connect directly to a phone or mp3 player, bypassing the units internal battery. I haven't listened to any hi-tech tracks (although my phone supports them); but I can say that these are the best Bluetooth phones I have heard. Sony are great for audio quality, and at this price far better than rival offerings from the likes of Jabra, Bose, Plantronics et alia.

Bought 3weeks ago sound kept skipping when connected to ldac. Returned for a new pair still does same thing. Done everything said in trouble shooter said and no joy not very happy with purchase. item works fine when connected to aptx.

I bought these headphones - which were not cheap - primarily to use in conjunction with Bluetooth enabled Sony Walkman products, but they work extremely well with appropriately equipped smart TVs. As long as you maintain line of sight the signal is strong and stable up to approx 10m (30ft). sound quality is first class and the selection of various sized earplugs make them pretty comfortable to wear. Voice notification is given for power on/off and Bluetooth pairing and connection/disconnection. This is more user friendly than just a series of tones which can be easily confused. A cable fitted with a mini jack on one end and mini USB on the other will if necessary enable you to connect when no Bluetooth is available. A word of caution. If you want to listen to your music from a phone or mp3 player you will need to purchase an arm band for the purpose. If the music source is in your pocket then these headphones cannot receive a stable signal.