Yes，the head can be adjusted 45°
Yes, It is rechargeable. it is equipped with a cable for charging. One hour of charging can give cats 5 hours of playing.
3.Will it scare the cat? My kitten is 2 year old.
No,this cat laser collar is very easy to use, and it won’t make any sound.
No, there’s no trick. The little silver button you just click it once for steady laser, two for flashing laser, and three to turn it back off. If you charged it overnight, as in way longer than the recommended time, there’s a possibility you could have damaged the battery.
It is very light and my kitty doesn’t feel any pressure to wear it. My kitten played with the laser toy for half an hour and it feels so excited. I think your cat will love it.