Hi friend, good one at this price range. sound is fine. battery backup good enough 12-14 hrs backup with 3-4 hrs internet surfing. the htc desire 10 is powered by 1.6ghz quad core snapdragon 400 processor and it come with 2gb ram. the phone packs 16 gb internal storage that can be expanded up to 2gb via a microsd card. htc desire 10 lifestyle has you covered front and back.the 12mp main camera takes clear, bright photos and full hd video even in low light thanks to its bsi sesor while the phones 5mp selfie camera makes sharing the best of you easy, slim and lovely design. overall a good product. good purchase foe money