I recently bought PXC 550 ii, this is the second time I charge it, it's been more than three hours already and the third led is still blinking (internet says full charge
Sennheiser PXC 550 II Wireless Noise Cancelling Headphones
Sennheiser PXC 550 review | 50 facts and highlights
Product overview
Sennheiser PXC 550 II Wireless Noise Cancelling Headphones
Sennheiser PXC 550 Wireless review | TechRadar
Replacement Battery for Sennheiser PXC 550 : Amazon.ca: Electronics
Sennheiser PXC 550 Review. Best Wireless Noise-Cancelling Headphones? – Headphones.com