JBL 100%oOriginal LIVE 660NC Active Noise Cancelling Wireless Headphone Bluetooth 5.0 ANC Earphone with Stereo Mic

Technical Specifications:

*Driver size: 40mm/1.6″ Dynamic Driver
*Power supply: 5V, 1A
*Weight: 265g/0.6 lbs
*Battery type: Lithium-ion Polymer
(750mA/3.7V)
*Charging time: <2 hrs from empty
*Music playtime with BT on and ANC off:
Up to 50 hrs
*Music playtime with BT on and ANC on:
Up to 40 hrs
*Frequency Response: 16Hz – 20kHz
*Impedance: 32 ohm
*Sensitivity: 97dB SPL@1kHz/1mW
*Maximum SPL: 94dB SPL
*Microphone sensitivity: -19dBV@1kHz/Pa
*Bluetooth version: V5.0
*Bluetooth profile version: HFP V1.7,
A2DP V1.3, AVRCP V1.6
*Bluetooth transmitter frequency range:
2.4GHz – 2.4835GHz
*Bluetooth transmitter power: <10dBm
*Bluetooth transmitter modulation:
GFSK, π/4 DQPSK, 8DPSK
*Maximum operation temperature: 45°C