Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
I just bought this but am in the process of returning it because it has no output or headphone jack. I saw the MP3 capability as a way to tie into my regular stereo equipment so that I could leave a single CD in for a party and walk away. Obviously you need some sort of output jack for that.
I tried to figure out from the online info whether or not this had such a jack, and finally decided that nobody would be dumb enough to make a boombox at this price point without a headphone jack. Wrong answer.
My 5 minute test suggests the sound is decent enough though. If you don't need to tie this into any other system, it is a good buy.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: B: positive