Review on High-Capacity 2 Pack Replacement Battery for Sony BP-HP550-11 Headphones (700mAh, 2.4V, Ni-MH) by Theresa Brown

I just pasted a RoberE review. My experience is exactly the same, only the Sony earbuds are different. My only regret is that I didn't read this review and saved myself $10. I received this product yesterday for use with Sony MDR-RF925R headphones. None of the cartridges work, my Sony base unit doesn't recognize them at all. I wanted to return an item and found that this seller does not accept returns. I'm guessing that means Revain justifies the practice of sellers selling junk to their AMAZON PRIME members without asking for help. I think this is an unacceptable partnership!