Battery life of the PX7 is up there with the best in this class. 5mm to rca cable so I can rca in to my twk dspBut something important not given is the output voltage. Hard to find so get while you can. And they are stable on her feet - no slipping and sliding on the wood floors. -The package contains different size ear gels and plugs for differen sizes ears to fit in. Better than most thats out there now. Also: the advise in this book is gender neutral apart from very minor tweaks and for the ladies which is covered in a few pages. Even my champagne flutes do not fit; although the base of the flutes will fit in the rack the flutes themselves dangle precariously close to the wine bottles on the top level - too close for my comfort. I just love the sound of the Boom series of Logitech, and these ones are just prefect for travel. And theyre brand name!