This 570 was a 48 hr replacement for a 650 that had the famous faulty on/off switch which failed within in hour. This is where Amazon come into their own with an immediate return/refund and dispatch of a 570. I actually prefer it in Black Polycarbonate to the Silver Alloy and my Nokia 920 mobile does not support the higher quality APTX that the 650 has. This has half the battery life but 10 hours is still plenty for me. The packaging is far less fancy on the 570 than the 650 with a simple box and it lacks the carry bag and has no mains charger, just USB. But all things that I can live without for £30 less. The Sound is perfect and just like the 650 which is the main event. It does not have a Thumping Bass and will not fill an arena but for a tiny light box it is amazing. The Volume is plenty loud on full and does not distort. It has a great tone and cystal treble, very clear mids and a nice bass, It is essential to place it close to a wall though or corner to get the full sound. I can also use the graphic equaliser on my Windows phone if I plug in direct and naturally the sound quality is better and louder hard wired. The sound out will be great as well for controlling my Hi Fi. The Hands free works a treat, when a text arrives it pauses and the 570 reads out the text to me as the Nokia has voice control and I can just talk back to the speaker and even dictate a reply, assume iPhone will be similar. In summary for £69.99 this is superb tiny piece of kit, its small enough to take anywhere and the sound belies its looks. Its stylish and well made, the only question is will the on /off switch be up to the job long term. I am prepared to take the risk as i don't think there is another speaker with all the features this one has at sub £70.