![Amazon.com: Sennheiser PXC 550-II Wireless – NoiseGard Adaptive Noise Cancelling, Bluetooth Headphone with Touch Sensitive Control and 30-Hour Battery Life (Renewed) : Electronics Amazon.com: Sennheiser PXC 550-II Wireless – NoiseGard Adaptive Noise Cancelling, Bluetooth Headphone with Touch Sensitive Control and 30-Hour Battery Life (Renewed) : Electronics](https://m.media-amazon.com/images/I/71RiYlAxk9L._AC_SY355_.jpg)
Amazon.com: Sennheiser PXC 550-II Wireless – NoiseGard Adaptive Noise Cancelling, Bluetooth Headphone with Touch Sensitive Control and 30-Hour Battery Life (Renewed) : Electronics
![Sennheiser HD4.50 BTNC review: Excellent noise cancellation and a fantastic battery life - The Economic Times Sennheiser HD4.50 BTNC review: Excellent noise cancellation and a fantastic battery life - The Economic Times](https://img.etimg.com/thumb/width-1200,height-900,imgsize-50751,resizemode-1,msid-58608380/magazines/panache/sennheiser-hd4-50-btnc-review.jpg)
Sennheiser HD4.50 BTNC review: Excellent noise cancellation and a fantastic battery life - The Economic Times
![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 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](https://i.redd.it/nv2nbpguw0i51.jpg)