JBL TUNE BUDS Glass Bean True Wireless Bluetooth Earphones Active Noise Reduction Sports Earphones with Mic Gaming Earphones

Product Specifications -Model: TUNE BUDS -Drive unit size: 10mm dynamic coil drive unit -Power supply: 5V==1A -Headphones: one 5.4g (one pair 10.8g)/ -Charging case: 44g -Earphone battery type: Lithium ion battery (70 mAh/3.85 V) -Charging case battery type: Lithium ion battery (680 mAh/3.8V) -Charging time: 2 hours (from empty to fully charged) -Music playback time when Bluetooth is turned on but active noise cancellation is turned off: maximum battery life of 12 hours -Music playback time when Bluetooth and active noise cancellation are turned on: maximum battery life of 10 hours -Call time when active noise reduction is enabled: maximum battery life of 6 hours -Call time when active noise cancellation is turned off: maximum battery life of 6.6 hours -Frequency response: 20 Hz -20 kHz -Impedance: 32 ohms -Sensitivity: 101 dB SPL@1 kHz -Maximum SPL: 93 dB -Microphone sensitivity: -38 dBV/ Pa@1 kHz -Bluetooth version: 5.3 -Bluetooth configuration file versions: A2DP V1.3.2, AVRCP V1.6.2, HFP V1.8 -Bluetooth transmitter frequency range: 2.4 GHz – 2.4835 GHz -Bluetooth transmitter power:<11 dBm (EIRP) -Bluetooth transmitter modulation: GFSK, π/4-DQPSK, 8-DPSK -Maximum operating temperature: 45 ℃