--- product_id: 445239567 title: "ETEKJOY 10 PCS Writable 125kHz RFID Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm (Blank Card No Data)" brand: "etekjoy" price: "2379 kr" currency: ISK in_stock: true category: "Etekjoy" url: https://www.desertcart.is/products/445239567-etekjoy-10-pcs-writable-125khz-rfid-sticker-coin-adhesive-back store_origin: IS region: Iceland --- # Waterproof & durable PVC casing 125kHz frequency for universal RFID compatibility Rewritable up to 100,000 times ETEKJOY 10 PCS Writable 125kHz RFID Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm (Blank Card No Data) **Brand:** etekjoy **Price:** 2379 kr **Availability:** ✅ In Stock ## Summary > 🔐 Stick, program, and secure your world—upgrade your access game with ETEKJOY! ## Quick Answers - **What is this?** ETEKJOY 10 PCS Writable 125kHz RFID Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm (Blank Card No Data) by etekjoy - **How much does it cost?** 2379 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/445239567-etekjoy-10-pcs-writable-125khz-rfid-sticker-coin-adhesive-back) ## Best For - etekjoy enthusiasts ## Why This Product - Trusted etekjoy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Endless Reusability:** Erase and rewrite data up to 100,000 times—perfect for backups and custom tags. - • **Compact & Adhesive Design:** 25mm coin-sized stickers with strong adhesive back to stick discreetly on your essentials (non-metal surfaces). - • **Long-lasting Data Storage:** Reliable data retention for up to 10 years ensures your programmed info stays safe and accessible. - • **Waterproof & Durable Build:** Crafted from tough PVC plastic to withstand daily wear and tear, rain or shine. - • **Universal 125kHz RFID Compatibility:** Works seamlessly with ATMEL T5577 chip and common 125kHz standards like HID & EM4100. ## Overview ETEKJOY’s 10-pack of 25mm writable 125kHz RFID sticker coins feature the versatile ATMEL T5577 chip, compatible with popular RFID standards like HID and EM4100. These rewritable tags can be programmed up to 100,000 times using a 125kHz RFID writer, offering a durable, waterproof PVC design with a strong adhesive back for easy attachment to non-metal surfaces. Ideal for professionals seeking customizable, compact access tokens that blend convenience with long-term reliability. ## Description Important Note: 1. These are blank cards without pre-programmed card numbers. You cannot directly add them to RFID locks or use a card reader to read data from them. 2. Before use, you must first write data(card numbers) into them by a 125KHz RFID card writer. 3. Smart locks cannot write data to cards. They can read cards only. 4. These 125KHZ cards are ID cards. They are not IC cards or NFC cards. They don't work for TTLock or Tuya smart locks which use 13.56MHZ frequency.FAQ: 1. Question: Can I directly register these tags to my electronic lock? Answer: No. These tags are blank tags without pre-programmed card numbers. The electronic locks cannot write or program a blank tag. The electronic locks can read only. They read card numbers from programmed tags and then verify it Pass or not. 2. Question: Why can't I copy my old tags/cards to your tags by a card writer? Answer: First, make sure that your card is the same RFID frequency of 125KHZ. Not all RFID cards are 125KHZ type. For example, another popular key cards use the frequency of 13.56MHZ, which is also called NFC card or IC card. Cards of different frequencies are incompatible. Second, make sure that your RFID card writer can work for the frequency 125KHZ, and that you set it in the right channel. Some RFID card writers have several working frequencies.ETEKJOY 10 PCS Writable 125kHz RFID Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm Round-coin-shape sticker, with adhesive back. You can stick it on other stuff (but not metal) if necessary. Frequency: 125kHz; Chip: ATMEL T5577 (compatible with other universal 125kHz tags); Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years. Writable & Rewritable. It can be erased and written 100,000 times. Suitable for making new and back-up tags. Approx Size: 25mm Diameter, 1mm Thickness. Casing Material: White PVC Plastic. Waterproof & Durable. Package includes 10 PCS. ## Features - Important Note: These are blank cards without pre-programmed card numbers. You cannot directly add them to RFID locks or use a card reader to read them. Before use, you must first write data(card numbers) into them by a 125KHZ RFID card writer. They are not IC cards or NFC cards. They don't work for TTLock or Tuya smart locks which use 13.56MHZ frequency. More product info and FAQ is listed in the Product Description. Please read the description before purchase. - Round-coin-shape sticker, with adhesive back. You can stick it on other stuff (but not metal) if necessary. - Frequency: 125kHz; Chip: ATMEL T5577 (compatible with other universal 125kHz tags); Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years. - Writable & Rewritable. It can be erased and written 100,000 times. Suitable for making new and back-up tags. - Approx Size: 25mm Diameter, 1mm Thickness. Casing Material: White PVC Plastic. Waterproof & Durable. Package includes 10 PCS. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2DLRQ5T | | Best Sellers Rank | #201 in Home Security Systems | | Brand Name | ETEKJOY | | Color | Multicolor | | Customer Reviews | 4.2 4.2 out of 5 stars (288) | | Finish Type | Uncoated | | Item Shape | Round | | Line Size | 1mm | | Manufacturer | ETEKJOY | | Manufacturer Part Number | ET929 | | Material Type | Polyvinyl Chloride | | Model Number | ET929 | | Number of Items | 10 | | Number of Labels | 10 | | Size | 25mm | | Unit Count | 10 Count | ## Product Details - **Brand:** ETEKJOY - **Color:** Multicolor - **Finish Type:** Uncoated - **Material:** Polyvinyl Chloride - **Size:** 25mm ## Images ![ETEKJOY 10 PCS Writable 125kHz RFID Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm (Blank Card No Data) - Image 1](https://m.media-amazon.com/images/I/31KnQeA6E8L.jpg) ## Frequently Bought Together - ETEKJOY 10 PCS Writable 125kHz RFID Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm - 125khz RFID Writable rewritable T5577 fob tag for RFID Writer (Pack of 10) (Black) - YARONGTECH-125khz writable rewrite blank white T5577 T5557 Plastic RFID hotel key card (Pack of 20) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/445239567-etekjoy-10-pcs-writable-125khz-rfid-sticker-coin-adhesive-back](https://www.desertcart.is/products/445239567-etekjoy-10-pcs-writable-125khz-rfid-sticker-coin-adhesive-back) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-11-13*