JBL Live 770NC Black Bluetooth Headphones with Adaptive Noise Cancelling

Description

The JBL Live 770NC wireless over-ear headphones in a black finish represent an essential benchmark for the high-end telephony and multimedia market. Designed to meet the expectations of itinerant professionals and end-users seeking optimal acoustic isolation, this model integrates True Adaptive Noise Cancelling (ANC) technology. The latter adjusts the attenuation of ambient noise in real-time using a dedicated microphone array, while incorporating Smart Ambient features (Ambient Aware and TalkThru) to allow controlled perception of the external environment without removing the headphones.

From an electro-acoustic standpoint, the JBL Live 770NC relies on two 40 mm dynamic transducers tuned according to the JBL Personi-Fi 2.0 acoustic profile, guaranteeing balanced and customizable sound reproduction via the dedicated application. Its motherboard integrates a Bluetooth 5.3 controller supporting the LE Audio protocol and multipoint connection, allowing simultaneous synchronization with two devices (for example, switching from a video on a tablet to an incoming call on a smartphone). The power supply system relies on an 850 mAh Lithium-ion Polymer accumulator housed in the ear cup, offering up to 65 hours of continuous listening and benefiting from a fast-charging function via its USB-C port.

The mechanical assembly of the headphones combines a foldable articulated structure with an adjustable headband covered in breathable woven fabric, minimizing pressure points on the top of the head during prolonged sessions. The memory foam and leatherette over-ear cushions provide effective passive isolation. For the repair workshop or B2B stock manager, the device is characterized by modular sub-assemblies (quick-clip ear cushions, detachable 3.5 mm mini-jack audio cable, and optical port opening sensor integrated under the earpiece).

Technical Specifications

• Technology / Material: 40 mm dynamic transducers / Woven fabric headband, ABS ear cups, and leatherette cushions
• Compatibility: Universal Bluetooth 5.3 (iOS, Android, Windows, macOS) and wired 3.5 mm Jack
• Dimensions: Over-ear headphone format with flat-folding structure
• Weight: 256 g
• Power Supply / Standards: Li-ion Polymer Battery 3.7V / 850 mAh, USB-C Charging (5V / 1A), CE / RoHS Certification
• Battery Life / Charging: Up to 65h (ANC off) / 50h (ANC on), full charge in 2 hours (5 min = 4h)
• Connectivity & Range: Bluetooth 5.3 (Profiles A2DP v1.4, AVRCP v1.6.2, HFP v1.8), detachable passive audio cable

Workshop & Usage Advice

To limit the after-sales return rate related to pairing or power issues, we recommend advising the end-user on a factory reset procedure in case of lost multipoint Bluetooth connection (hold the Volume + and Volume - buttons down for 5 seconds until the LED indicator lights up). From an electrical perspective, warn against the use of unregulated ultra-fast chargers which can trigger safety mechanisms or alter the thermal management chip (BMS) of the headphones. Finally, when replacing worn cushions, take care not to use sharp metal tools for un-clipping to avoid piercing the transducer membrane or damaging the ANC detection microphones under the acoustic grille.