These are Sony brand, one that I know and trust. I have a credit card remote for a Moukey digital stereo system (also purchased from Amazon) that I put one of these in, substituting for a weak CR2505 battery the remote came with. These CR2025 replacements work perfectly, and better. My remote doesn't draw a lot of power, but I do use it frequently daily, so I expect good lifetime runs out of the batteries, and getting a 5-pack so inexpensively provides coverage and peace of mind. Please remember that depending upon your electrical application, and power draw requirement, time length of operation can vary. Highly recommended purchase and seller.ThanksSo far they came fast and have worked well when installedProduct is what is listed. Great for replacement of car key fob batteries and high quality as well. This pack will last me a while. Fast shipping as well.The DVD player call for these type of batteries they work good so farI wanted SONY batteries for our car remote. I've bought name brands at the grocery. They lasted about 2 months. Last time I went to the dealer. Someone told me that they use better batteries. I got SONY ones that lasted about a year so I wanted to buy SONY. I got MURATA as a replacement. They are the same battery size but I didn't want a replacement. I'll use them for a few months and then go to the dealer. More expensive, but I want ones that last.I have the Sony 3D tv and the batteries finally faild on the active glasses these replaced them fineNOT Sony as pictured. Supplier included letter claiming substitute is equivalent to original, so why does my key fob display the 'Low Battery' warning. Oh yes! That's why I was specific in buying the SONY name brand. Duh!The Radio in my Camper Van was missing the Remote Control when I purchased it.Then having bought one online there was no batteries.After detected which batteries it used,I then ordered a pack of 5 CR2025 batteries on Amazon.They are extremely good value and are working well.Genuine. A bit pricey but for convenience, fast deliveryAppears to be working well. Would like to see bio-degradable wrapping used.Long dated stock (2029) at a very reasonable price and quick delivery.Perfect replacement for my car key battery.