After many experiments with different ear pieces that repeatedly fell out the answer was to purchase the JVC HA-S150R that I take to the gym. They are not ideal if you sweat but with the use of a head sweat band they are very light and comfortable for a 10k jog. As ordinary headphones they compare very favourable to my noise cancelling Sennheiser PXC300.that I use on aircraft. Although it is possible to hear background noise the quality of sound is better than my more expensive pair and for general use I am very pleasantly surprised.No faults at all with this product.