Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sound good but flimsy

These sounded great with my portable player. The ear pieces were hard to deal with while wearing glasses. Also, I was told that everybody within ten feet can hear what I'm listening to at high volume. Not good on public transport.While listening in bed, the plastic ear piece pops off if I roll over wrong. Then I'm fumbling around in the dark trying to reassemble the headphones, while half asleep. Finally one of the ear pieces disappeared, rendering the phones unusable.OK, I'm a klutz. I need something simple, that stays in one piece.