JBL Live 770NC Wireless Over-Ear Headphone Features and Specifications 

Key Features:

• JBL Headphone App
• True Adaptive Noise Cancelling
• Spatial Sound
• Voice Assistant Integration
• Active Noise Cancelling
• Adaptive Noise Cancelling
• Ambient Aware
• Built-in Microphone
• Hands-Free Call
• JBL Signature Sound
• Multi-Point Connection
• TalkThru

Specifications:

• Driver size (mm): 40
• Number of Microphones: 2
• Driver sensitivity at 1kHz/1mW (dB): 100
• Dynamic frequency response range (Hz): 20 Hz – 20 kHz
• Impedance (ohms): 32
• Bluetooth profiles: A2DP v1.4, HFP 1.8, AVRCP v1.6.2
• Bluetooth frequency: 2.4 GHz – 2.4835 GHz
• Bluetooth transmitter modulation: GFSK, π/4-DQPSK, 8-DPSK
• Bluetooth transmitter power: < 10 dBm (E.I.R.P)
• Bluetooth version: 5.3
• Charging time (hours from empty): 3
• Maximum music play time with ANC off (hours): 65
• Maximum music play time with ANC on (hours): 50
• Maximum playtime (hours): 65
• Maximum talk time (hours): 33