inputs.text: good dash cam things concern - little dash cam quite good video spectacular true 1080p although frame rate 30 fps audio clearthere three reasons gave 4 stars instead 51 user manual broken english not clear get menu change settings without manual not intuitive figure buttons functions press button press hold2 using dash cam months ive come noticed video flickers sometimes im not exactly sure causes seems whenever drive bump flicker evident3 user manual says not use dash cam excessive heat 100 f know summer temperature inside parked car easily reach 150 degrees f concern rechargeable lithium battery happen gets hot garmin gps no problems summer heat since still winter writing review dont know happen weather warms upupdate 782015it july hottest time year average daytime temperature 105 f days ago 113 f car parked outside driveway little shade inside temperature car must least 160 f camera still working like champ