Original JBL Tune 230nc TWS Bluetooth Headset Wireless Stereo Bass Earphone Waterproof Sports T230nc Headphone with Microphone

Technical specifications:

Driver size: 6mm/0.24″ Dynamic Driver
Power supply: 5V 1A
Earbud: 5.1g per pc (10.2g combined)/
0.011 lbs per pc (0.022 lbs combined)
Charging case: 47.3g/0.104 lbs
Earbud battery type: Lithium-ion polymer
(70mA/3.85V)
Charging case battery type: Lithium-ion
polymer (750mA/3.7V)
Charging time: 2 hrs from empty
Music playtime with BT on and ANC off:
up to 10 hrs
Music playtime with BT on and ANC on:
up to 8 hrs
Frequency response: 20Hz – 20kHz
Impedance: 16 ohm
Sensitivity: 105dB SPL@1kHz
Maximum SPL: 95dB
Microphone sensitivity: -38 dBV/Pa@1kHz
Bluetooth version: 5.2
Bluetooth profile version: A2DP 1.3,
AVRCP 1.6, HFP 1.7
Bluetooth transmitter frequency range:
2.4GHz – 2.4835GHz
Bluetooth transmitter power: <12dBm
Bluetooth transmitter modulation:
GFSK, π/4-DQPSK, 8-DPSK
Maximum operation temperature: 45°C