I a user of Rugby bluetooth speaker extremely satisfied with the product quality.
I am using it from about 6 months I bought it from flipkart at the price of RS 349 but I am happy as its sound quality is best from the speakers which are available at same price.
It has a single speaker of 5 watt with 3 hours of continuous battery life. I contain microUSB port, USB port and a memory card slot which improves experience.
It also has radio options which will also satisfy your need of listening radio.
And it could also be a perfect gift for your parents so that they could listen music carefully.