אם תביאי מצלמה, אוזניות וכובע, נוכל לשבת בפארק, לשמוע מוזיקה ולצלם תמונות גם כשקר קצת.

Yes. תביאי is the future, second person singular feminine form of להביא meaning to bring.

So this sentence is addressed to one female person.

Related forms:

• תביאי = you will bring / if you bring (to one woman)
• תביא = you will bring / if you bring (to one man)
• תביאו = you will bring (to more than one person)

That is a very common Hebrew pattern. After אם meaning if, Hebrew often uses the future tense for a real condition:

• אם תביאי..., נוכל...

Literally this looks like if you will bring..., we will be able..., but in natural English it is usually translated as:

• If you bring..., we can / we’ll be able...

So this is normal Hebrew grammar, not overly formal or strange.

Because את is used only before a definite direct object.

Here the nouns are indefinite:

• מצלמה = a camera
• אוזניות = headphones
• כובע = a hat

So you do not say את.

Compare:

• תביאי מצלמה = bring a camera
• תביאי את המצלמה = bring the camera

If the sentence had the camera, the headphones, and the hat, then את would be needed.

Yes. אוזניות is grammatically plural, but it often refers to one set of headphones.

This is similar to some English items that are plural in form, like glasses or pants.

So:

• אוזנייה = an earphone / earbud (singular)
• אוזניות = headphones / earphones (usually one set)

נוכל is the first person plural future form of יכול meaning can / be able to.

So נוכל means:

• we will be able to
• or, in smoother English here, simply we can

In this sentence, it connects the condition with the result:

• If you bring..., we’ll be able to...

Because after a verb like נוכל meaning we will be able to, Hebrew normally uses an infinitive for the following actions:

• נוכל לשבת = we will be able to sit
• לשמוע = to listen
• ולצלם = and to photograph / and take pictures

This is very similar to English:

• we can sit, listen to music, and take pictures

The ל at the start of those verbs is the normal infinitive marker, like English to.

They do different jobs here:

• אם = if
• כש = when

So:

• אם תביאי... = if you bring...
• כשקר קצת = when it’s a little cold

אם introduces a condition.
כש introduces a time or situation.

So the sentence means something like:

• If you bring a camera, headphones, and a hat, we can sit in the park, listen to music, and take pictures even when it’s a little cold.

In unpointed Hebrew, בפארק can represent either:

• בְפארק = in a park
• בַפארק = in the park

They are spelled the same without vowel marks, so context tells you which one is meant.

In this sentence, because the meaning is already known, it is understood as in the park.

This happens a lot in Hebrew with prepositions like:

• ב = in
• ל = to
• כ = as / like

When they combine with ה meaning the, the spelling often stays compact.

Because in the present tense, Hebrew usually does not use a separate word for is / am / are.

So:

• קר = cold
• כשקר קצת = when it’s a little cold

Literally, it is closer to:

• when cold a little

But natural English adds it is.

This is a very important Hebrew pattern:

• הוא עייף = he is tired
• החדר גדול = the room is big
• קר היום = it is cold today

No present-tense form of to be is written.

Both are possible, but they can feel slightly different in emphasis.

• קצת קר = the more neutral, straightforward way to say a little cold
• קר קצת = also natural, often a bit more conversational or slightly shifted in emphasis

So כשקר קצת is fine and natural.
A speaker could also say גם כשקצת קר, and that would also sound normal.

Here גם adds the sense of also / even.

So גם כשקר קצת means:

• also when it’s a little cold
• more naturally in English: even when it’s a little cold

It suggests that the activities are still possible despite the weather being a bit cold.

Because ו is the Hebrew word for and, and it is normally attached directly to the next word.

So:

• וכובע = and a hat
• ולצלם = and to take pictures

This is completely normal in Hebrew spelling.
You will see this all the time:

• ספר ועט = a book and a pen
• לשבת ולדבר = to sit and talk

So the attached ו is nothing unusual; it is just how and is written.