? JBL Tune 770NC - Bluetooth Headphones with Active Noise Cancellation (ANC)

? JBL Tune 770NC - Bluetooth Headphones with Active Noise Cancellation (ANC) Brand new, unused, no signs of wear. I bought it yesterday to use on my PC via P2 cable, but it didn't work the way I expected; I tested for about 5 minutes at most ? Details: Model: JBL Tune 770NC Bluetooth + P2 cable (included) Active Noise Cancellation (ANC) Battery life up to 70 hours JBL Pure Bass sound Comfortable and foldable design Original product, with box and accessories. Perfect for those seeking sound quality and comfort in daily use. ? Reason for sale: did not meet my needs on the PC (cable usage).