JBL TUNE 710BT Headphones

Driver Size: 40mm/1.6"
dynamic controller
Power supply: 5V 1A
Headphone battery type: polymer lithium ion battery (690mAh/3.7V)
Charge time: <2 hours empty
Music playing time with BT on: up to 50 hours
Frequency response: 20Hz – 20kHz
Impedance: 32 ohms
Passive Mode Sensitivity: 104dB SPL@1kHz
Active Mode Sensitivity: 103dB SPL@1kHz Spl
maximum: 93dB
Microphone Sensitivity: -40 ± 3dbv 94dB@1 KHz
Bluetooth version: 5.0
Bluetooth profile version: A2DP V1.3, Avrcp V1.6, HFP V1.7
Transmitter frequency range
Bluetooth: 2.4ghz – 2.4835GHz Transmitter power
Bluetooth: <10dBm
Bluetooth transmitter modulation: Gfsk, π/4 DQPSK, 8DPSK
Maximum operating temperature: 45°C
Cable Length (m/ft): 1.2/3.9

Package included: 1*headphone 1*charging cable 1*Audio cable 1*manual