11. July 202211. July 2022 Ragnar Heil Amazon Prime Day 2022: Shokz Bone Conducting Headsets im Angebot
18. April 202117. May 2023 Ragnar Heil AfterShokz OpenComm Headset – Microphone Test on a Bike with Microsoft Teams Call
12. January 201913. January 2019 Ragnar Heil Review Plantronics Wireless Sport Earbuds BackBeat FIT 3100
24. June 20171. December 2020 Ragnar Heil Review: 4 weeks with wireless InEarBuds Jabra Elite Sport (Headphones)
18. December 201619. April 2018 Ragnar Heil Review and comparison of Fitness Tracker Garmin HR+ and Xiaomi Mi Band 2
21. November 201618. October 2017 Ragnar Heil Review of Jabra Sport Pulse – a wireless Sport Headset which tracks heartbeat
15. October 201619. April 2018 Ragnar Heil Review of iHealth Wave Fitness, Sleep and Swimming Tracker
9. September 201222. May 2018 Ragnar Heil Fitbit Aktivitätstracker für Kinder (Sport,Quantified Self)