I bought these to replace my aging BlueAnt X5s. These Sonys are more comfortable, have better battery life and sound much better. Overall, a fantastic buy. Pair them with a skullcandy adapter, my laptop, my desktop and my phone, all work well. Passcode is the standard 0000, so will pair with almost any device.Only gripe is the proprietary charger. Would have much preferred a usb mini connection.