Community price on backpack.tf: 17.0–19.0 keys, last changed 2017-04-29 (9.5y ago). The live quote above, 19.6 keys, is 15% higher and last moved 14d ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Steam Market asking price: $59.18 — the lowest of one listing for the Kill-a-Watt effect when we looked on 2026-10-13 01:31 UTC (7h ago). This is what a seller is asking, not what anything sold for. Steam pays out in Steam wallet funds, not cash, and Valve takes roughly 15% at the till — so asking prices there run well above the 19 keys, 36.44 ref shown above, which comes from the keys-and-metal market on backpack.tf. The two are different markets and are never blended. Steam lists the item as “Unusual Safe'n'Sound”, with no effect in the name — the effect comes from the individual listing.
Price history
122 observations
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
Kill-a-Watt Safe'n'Sound sell price, 2025-09-25 to 2026-10-09: 122 observations, from 20.2 keys to 20.8 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
20.2 keys
14.0 keys
19 OCT 2025 · 19:50 UTC
18.3 keys
14.0 keys
8 MAR 2026 · 16:41 UTC
18.6 keys
12.6 keys
2 APR 2026 · 20:30 UTC
20.2 keys
14.0 keys
1 MAY 2026 · 10:29 UTC
18.5 keys
10.7 keys
1 JUN 2026 · 02:29 UTC
19.7 keys
8.50 keys
22 JUN 2026 · 00:10 UTC
19.5 keys
11.3 keys
12 JUL 2026 · 16:45 UTC
13.1 keys
11.4 keys
3 AUG 2026 · 00:24 UTC
15.4 keys
13.4 keys
21 AUG 2026 · 20:09 UTC
12.1 keys
10.5 keys
23 AUG 2026 · 08:08 UTC
12.2 keys
10.6 keys
24 AUG 2026 · 20:09 UTC
12.4 keys
10.8 keys
26 AUG 2026 · 08:08 UTC
12.6 keys
11.0 keys
27 AUG 2026 · 20:10 UTC
12.7 keys
11.1 keys
29 AUG 2026 · 08:09 UTC
14.1 keys
12.3 keys
31 AUG 2026 · 02:09 UTC
17.3 keys
15.1 keys
1 SEP 2026 · 14:08 UTC
17.2 keys
15.0 keys
3 SEP 2026 · 02:08 UTC
17.2 keys
14.9 keys
4 SEP 2026 · 16:08 UTC
17.1 keys
14.9 keys
6 SEP 2026 · 06:09 UTC
17.1 keys
14.8 keys
7 SEP 2026 · 20:08 UTC
17.4 keys
15.1 keys
9 SEP 2026 · 10:08 UTC
17.4 keys
15.1 keys
10 SEP 2026 · 22:08 UTC
17.4 keys
15.1 keys
12 SEP 2026 · 10:08 UTC
17.4 keys
15.1 keys
14 SEP 2026 · 02:07 UTC
17.6 keys
15.3 keys
16 SEP 2026 · 02:08 UTC
18.2 keys
15.8 keys
17 SEP 2026 · 14:08 UTC
18.8 keys
16.4 keys
19 SEP 2026 · 02:07 UTC
19.2 keys
16.7 keys
20 SEP 2026 · 16:09 UTC
19.5 keys
17.0 keys
22 SEP 2026 · 06:09 UTC
19.6 keys
17.1 keys
22 SEP 2026 · 14:09 UTC
19.6 keys
17.0 keys
23 SEP 2026 · 08:10 UTC
19.7 keys
17.1 keys
24 SEP 2026 · 04:08 UTC
19.8 keys
17.2 keys
2 OCT 2026 · 13:11 UTC
19.6 keys
17.0 keys
4 OCT 2026 · 19:09 UTC
20.0 keys
17.4 keys
5 OCT 2026 · 11:09 UTC
20.1 keys
17.5 keys
5 OCT 2026 · 23:09 UTC
20.2 keys
17.6 keys
6 OCT 2026 · 17:09 UTC
20.3 keys
17.7 keys
8 OCT 2026 · 05:10 UTC
20.4 keys
17.8 keys
9 OCT 2026 · 19:10 UTC
20.8 keys
18.1 keys
Price history in numbers
122 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Safe'n'Sound's sell price ranged from 17.4 keys to 20.8 keys and is up 19.5% after 46 moves. Over a year it ranged from 12.1 keys to 20.8 keys (up 13.5%). Today's 20.8 keys sits at the top of its range: the lowest we have recorded is 12.1 keys (21 Aug 2026) and the highest 20.8 keys (9 Oct 2026). The price has moved 119 times since we began recording it — about once every 3 days.