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30 Floors Up Radio: How to Use the Battery Radio

Page updated Nov 12, 2026 (today) · 4,823 playing now

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Short version: Press F to switch the battery radio on or off and hold T to fit fresh batteries. It is tuned to the North Relay Band, and Mara says a voice called Ward comes on at seven (19:00). Keep the volume low and the doors shut: the game and the Custom Music Radio pass text both say loud radios draw zombies in.

Battery Radio at a glance

On / offF
Fit batteriesHold T
TuningNorth Relay Band (prompt: Tune: North Relay Band)
Battery seen38% (13 Tips run), 37% (co-op run)
BroadcastWard at 19:00 on the relay band, per Mara
RiskLoud radios draw zombies

What the radio objectives said

WhenWhat we saw
Mara's radioSwitch it on at low volume shortly before 19:00 and close the doors, because loud radios draw them in.
Day 2Wait for 19:00: static for now. Turn it off to save the batteries and back on just before seven.
Day 12A loud radio can lure zombies past the jammed east fire door.
Day 14Leaving a radio playing loud outside the home is one way to draw a crowd off.

Where the radio comes from

In a co-op run a group traded food to a neighbor and got a battery radio back. We haven't seen a fixed spot where a radio sits on the floor, so treat that as one run.

Mara, the neighbor across the balcony gap, asks for 2 portions of food for her own radio. See the neighbors page.

What we haven't seen

We haven't seen what Ward says after 19:00, or whether the broadcast changes day by day. The footage we've checked shows only the Day 2 emergency message, which said it was recorded at oh-six-hundred hours on Day Two.

Radio tips

FAQ

How do you use the radio in 30 Floors Up?

Press F to switch it on or off and hold T to fit fresh batteries. It tunes to the North Relay Band.

When does the radio broadcast in 30 Floors Up?

Mara says Ward comes on at seven on the relay band, so around 19:00 in game time.

Do radios attract zombies in 30 Floors Up?

Yes. The objective says loud radios draw them in, and the Custom Music Radio game pass description says the infected hear any battery radio.

Where do you get a radio in 30 Floors Up?

One co-op run traded food to a neighbor for one. We haven't seen a fixed pick-up spot.

More 30 Floors Up pages

Sources

Checked Nov 12, 2026. Community wikis are edited by players, so numbers marked “per” one wiki may change after an update.