JBL Tune 720BT Wireless On-Ear Headphones

Power supply: 5 V, 1 A
Frequency response: 20 Hz – 20 kHz
Impedance: 32 ohm
Sensitivity: 103 dB SPL@ 1kHz 1mW
Maximum SPL: 95 dB
Microphone sensitivity: -40 dBV@1kHz/Pa
Maximum operation temperature: 45 °C
Bluetooth transmitter modulation: GFSK, π/4-DQPSK, 8-DPSK
Bluetooth version: 5.3
Bluetooth profile version: HFP 1.7.2, AVRCP 1.6.2, A2DP 1.3.2
Bluetooth transmitter frequency range: 2.4 GHz – 2.4835 GHz
Bluetooth transmitted power: 6 dBm
Driver Size: 40 mm Dynamic driver
Weight: 220 g / 0.485 lbs
Headphone Cable Length (m): 1.2
Ear Cup External Height (cm): 7.34
Ear Cup External Width (cm): 7.34
Ear Cup Internal Height (cm): 3.1
Ear Cup Internal Width (cm): 3.1
Ear Cup Depth (cm): 1.78
Headset battery type: Lithium-ion battery (3.7V / 500 mAh)
Charging time: 2 hrs
Music playtime with BT on: up to 76 hrs