ZERFUN 4 Channel Rechargeable Wireless Microphone System(MU-898) | Pro UHF Metal Handheld Wireless Microphones Cordless Mics with Echo Bluetooth VOL Channel Control for Karaoke Singing Church

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4.3(243 ratings)In stock

Good price

$151.19 is 5% below the $160.19 it normally sells for.

Now: $151.19
Normally: $160.19
Lowest in 141 days: $135.99(Oct 6)
Highest: $179.99

Evidence: Strong141 days tracked40 price changeschecked 3h ago

Where today's price sits

Now $151.19Normal $160.19$135.99$179.99

View on amazon.com

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

The listing's crossed-out price

Holds up

The listing shows

crossed out: ~~List $159.79 −5%~~

Against its normal price

−5% vs $160.19

List $159.79 (−5%) holds up: today's price is 5% below normal.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Listing checked 8h ago

Price history

Tracked since Jun 22 · 141 days · 40 price changes

Price
Not checked for 3+ days
Normal $160.19
5% or more below normal

How often does it drop below normal?

In the 141 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 12 times, typically lasting about 1 day. It's below normal right now.

A count of what happened, not a prediction.

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Get this as JSONThe same verdict and prices, from the TrackPin API.

GET/api/v1/product/B0B9T3T6MK

Request

curl https://trackpin.co/api/v1/product/B0B9T3T6MK \
  -H "x-api-key: $TRACKPIN_API_KEY"

const res = await fetch("https://trackpin.co/api/v1/product/B0B9T3T6MK", {
  headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();

console.log(product.verdict.label, product.price.reference_cents);

import os, requests

r = requests.get(
    "https://trackpin.co/api/v1/product/B0B9T3T6MK",
    headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()

print(product["verdict"]["label"], product["price"]["reference_cents"])

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key

Live responseAs of 19:24 UTC

{
  "asin": "B0B9T3T6MK",
  "title": "ZERFUN 4 Channel Rechargeable Wireless Microphone System(MU-898) | Pro UHF Metal Handheld Wireless Microphones Cordless Mics with Echo Bluetooth VOL Channel Control for Karaoke Singing Church",
  "image": "https://m.media-amazon.com/images/I/71J4UihEAqL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Musical Instruments",
  "category_label": "Musical Instruments",
  "in_stock": true,
  "price": {
    "current_cents": 15119,
    "reference_cents": 16019,
    "discount_pct": 5.62,
    "is_deal": true,
    "observed_at": 1794410802123,
    "changed_at": 1794063506095,
    "checked_at": 1794410802123,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 5.62,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $151.19 is 5% below the $160.19 it normally sells for."
  },
  "listing_claim": {
    "label": "List:",
    "listing_reference_cents": 15979,
    "claimed_pct": 5,
    "real_pct": 5.62,
    "class": "holds_up",
    "observed_at": 1794394445025
  },
  "stats": {
    "min_cents": 13599,
    "max_cents": 17999,
    "avg_cents": 15980,
    "history_days": 141,
    "price_levels": 227,
    "price_changes": 40,
    "distinct_prices": 8,
    "lowest_at": 1791287176372
  },
  "history": [
    {
      "price_cents": 16999,
      "from": 1793895790810,
      "to": 1793915556433
    },
    {
      "price_cents": 15129,
      "from": 1793922988355,
      "to": 1794027197183
    },
    {
      "price_cents": 16999,
      "from": 1794041057575,
      "to": 1794041057575
    },
    {
      "price_cents": 17999,
      "from": 1794043919413,
      "to": 1794061987677
    },
    {
      "price_cents": 15119,
      "from": 1794063506095,
      "to": 1794410802123
    }
  ],
  "last_seen": 1794410802123
}
// … 222 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.

ZERFUN 4 Channel Rechargeable Wireless Microphone System(MU-898) | Pro UHF Metal Handheld Wireless Microphones Cordless Mics with Echo Bluetooth VOL Channel Control for Karaoke Singing Church

The listing's crossed-out price

Price history

How often does it drop below normal?

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