The Indiegogo campaign for the xNT--the first NFC implant--is considered the genesis of Dangerous Things.
The original 'magic' implant. It used the LF emulation powerhouse that is the Atmel t5577.
A TiN coated 3x1mm fingermagnet was the first of DT's biomagnet offerings.
The world's first injectable biomagnet, an axially magnetized c'ylinder.
The first biopolymer implant. A high performance NTAG216.
- 2016 - UKI
First gen smart card implant based on NXP's p40. Two made and installed.
- 2017 - xM1
MIFARE Classic 1k. The original HF access control implant was a legitmate NXP chip.
- 2018/7 - xBT
Injectable temperature-sensing transponder. Compatible with animal-grade RFID readers at 134 kHz.
- 07/2018 - flexDF
DESFire EV1 NFC chip in flex form.
- 2018 - xM1+
Magic MIFARE Classic 1k gen1a to fully exploit legacy support of the broken MFC. To complicate things, the '+' was dropped when we switched fully to magic MIFARE chips for MFC.
- 2018 - Flex One Beta
Second gen smart card implant based on NXP's p60.
- 2018 - Spark
First generation VivoKey Spark. ISO15693.
- 2019/2 - xHT
HITAG S2048 chip in glass, aimed at legacy HITAG-based access control systems.
The wildly popular dual frequency NExT has a NTAG216 and t5577 in 2mm bioglass.
- 2019/8 - xLED
Implantable RF field detector. Embedded LEDs light when the chip enters an active reader field, useful for finding alignment and confirming reader range. HF and LF variants.
Tritium vial in Dangerous Things bioglass. The response to the Firefly implants upon observing manufacturing issues.
- 2019/11 - Spark 2
The second generation of the Spark implants. This one based on ISO14443a.
- 2020/1 - xSIID
The first blinky implant! Electronics designed by Dsruptive, encapsulation by Dangerous Things.
- 2020/3 - xSLX
The second ISO15693 implant. This one a SLIX2.
- 2020/4 - flexEM
This t5577 brought spectacular range and durability.
More magic MIFARE Classic goodness with the coupling performance of a flex antenna
What if you could have a NExT with monstrous range? And blink?
A MIFARE Classic 1k on a flexEM antenna — and optionally with an LED. Discontinued due to material waste and antenna enamel degradation over time.
- 2020/8 - Titan Biomagnet Campaign
The titanium-encapsulated biomagnet, brought to market across three crowdfunding campaigns. Production ceased — small, high-precision parts at the volumes needed simply weren't cost-effective.
- 2020/10 - Custom 4g Needle
With this new needle and new antenna design, suddently flex installation could be quick and simple.
- 2020/12 - flexMN
A limited-batch t5577 in flex form, with optional LED nails. Always meant as a short run — high per-chip cost and low demand made longer production impractical.
- 2021/2 - xG3 v2
Refresh of the xG3 axially-magnetized injectable biomagnet.
- 2021/8 - flexClass
HID iCLASS in flex form, with personalization mode enabled. The first flex implant aimed at iCLASS-based access systems.
- 2022/7 - Apex Flex
VivoKey Apex JavaCard implant in flex form. A platform for user-installable applets — FIDO, OTP, payment cards — running on an NXP secure element. Released to the public after DT Club pre-order fulfillment.
- 2022/12 - flexSecure
JavaCard secure element implant in flex form, sibling to Apex Flex.
- 2023/5 - xMagic
Dual-frequency 'magic' implant — Magic MIFARE Classic 1k (HF) plus t5577-compatible LF emulation in a 3mm glass shell. Effectively replaced the xM1 as the magic HF offering.
- 2024/6 - flexUG4
Ultimate Magic gen4 JavaCard applet platform in flex form.
- 2024/8 - flexM1 v2
Second-generation flexM1 with updated antenna and magic MIFARE Classic gen1a/gen2 chips.
- 2025/3 - xDF3
Another x-series DESFire offering — DESFire in glass.
- 2025/4 - NExT v2
Updated NExT with the same NTAG216 + t5577 dual-frequency design, now available in multiple shell colors.
- 2025/6 - Glow Powder
Strontium aluminate glow powder in green, aqua, and blue at 50 micron — the pigmented bioresin material used for Glow Heart and similar glowing implants.
- 2025/6 - Memora
A bioresin memorial implant — cremated remains of a loved one mixed with optional glow powder, encapsulated and pre-loaded in an injector. ~3.1mm diameter. Carries no chip.
- 2025/8 - m-Series Biomagnets
First in the new 'm-Series' magnet line — non-injectable, encapsulated in DT's resin process. Rolled out across multiple geometries through Aug–Oct 2025 (M0426, M08s, M0422a, M1148a, M0490a, M04280bar, M1448a).
- 2025/10 - xGlow XL
Larger xGlow tritium-vial implant — brighter and more visible than the original.
- 2025/11 - dT5 t5577
T5577 LF chip in bioresin disc form. Successor to flexEM, which is being discontinued.
- 2025/11 - dUG4T
UG4 JavaCard + t5577 dual-chip implant in bioresin disc form — rigid, thicker than flex.
- 2025/12 - dNExT
NTAG216 + t5577 dual-frequency NExT in bioresin disc form.
- 2026/1 - Glow Heart
Heart-shaped (25×25×2mm) bioresin + strontium aluminate glow powder implant.
- 2026/2 - VivoKey Thermo
VivoKey Thermo 112 temperature-reading implant — opened for preorder.

