Terre Irish Whistle F

Bought this instrument guessing what I would get for this little money. I returned the product because it's disappointing. The sound is very noisy/unclean with lots of extra noise when playing a single note. Not just the typical Whistle hiss/breathing as extra noise but some annoying noise as well sadly. The high E is unplayable for example, the low E will always sound, no matter how hard you blow.

Tuning: the head is in a fixed position and it looks like you can't solve the tuning by modifying it because it's glued on. General, my whistle was tuned almost 4 comma's too low. Especially in the low octave, I'm unable to hit the centre of a tuner. With pushing, you can get to 2 comma's too low before jumping to the second octave.

Playing together with other instruments is impossible due to incorrect tuning sadly!!