The volume buttons are to the left and on the top there is a 3.5 mm audio jack. The memory card slot is present inside the ZenPad which can be expanded upto 64 GB.
Definitely a good tablet with a great camera and battery in the price range of under Rs.15,000/-
The screen is scratch proof and the touch is very responsive even with gloves on my hands.
The sound quality was great too.
Overall this is a great tablet in the price range.
The addition of ASUS audio cover is a plus point and makes this tablet stand out from the entire range of tablets in the market.