The JBL Live 770NC wireless headphones in blue offer a balanced listening experience powered by 40 mm drivers that cover a frequency range from 20 Hz to 20 kHz. These headphones feature Adaptive Noise Cancelling to help you focus on your music, while the Ambient Aware mode allows you to stay mindful of your surroundings when needed. Connectivity is handled by Bluetooth 5.3, ensuring a stable wireless link for both audio playback and calls via two integrated microphones. Designed for long-term comfort, the headset weighs 256 g and includes soft cushions with adjustable cups to fit your head securely. The battery is particularly impressive, providing up to 65 hours of playback with noise cancelling turned off, or 50 hours when ANC is active. If you use them primarily for calls, you can expect around 33 hours of talk time, with a full recharge taking approximately 3 hours.