JBL Tune Flex True Wireless Noise-Cancelling Earbuds (Blue) - Manual (Page 15)

led behaviors
BT connecting
BT connected
BT not connected
Factory reset
CHARGING
LOW BATTERY
FULLY CHARGED
TECH
SPEC
Model: TUNE FLEX
Driver size: 12 mm/ 0.472” Dynamic Driver
Power supply: 5V 1A
Earbud: 4.8 g per pc (9.6 g combined)/
0.0105822
lbs per pc (0.021 lbs combined)
Charging case: 38.6 g/ 0.085 lbs
Earbud battery type: Lithium-ion polymer (55 mAh/ 3.85 V)
Charging case battery type: Lithium-ion polymer (570 mAh/ 3.85 V)
Charging time: < 2 hrs from empty
Talk time: 4.5 hrs
Music playtime with BT on
and ANC off: up to 8 hrs
Music playtime with BT on
and ANC on: up to 6 hrs
Frequency response: 20 Hz – 20 kHz
Impedance: 32 ohm
Sensitivity: 108 dB SPL@1 kHz
Maximum SPL: 92.5 dB
Microphone sensitivity: -38 dBV/Pa@1 kHz
Bluetooth version: 5.2
Bluetooth profile version: A2DP V1.3, AVRCP V1.6, HFP V1.7
Bluetooth transmitter
frequency range: 2.4 GHz - 2.4835 GHz
Bluetooth transmitter
power: <10 dBm
Bluetooth transmitter
modulation: GFSK, π/4-DQPSK, 8DPSK
Maximum operation
temperature: 45 °C