Driver size (mm) 10 Number of Microphones 4Audio Specifications Driver sensitivity at 1kHz/1mW (dB) 101 Dynamic frequency response range (Hz) 20 Hz – 20 kHz Impedance (ohms) 32Dimensions Charging Case Weight (g) 38.8 Charging Case Weight (oz) 1.4 Earpiece Weight (g) 10.8 Earpiece Weight (oz) 0.3 Control and Connection Specifications Bluetooth profiles A2DP v1.3.2, AVRCP v1.6.2, HFP v1.8, DID v1.3 Bluetooth frequency 2.4 GHz – 2.4835 GHz Bluetooth transmitted modulation GFSK, π/4-DQPSK, 8-DPSK Bluetooth transmitter power <13 dBm Bluetooth version 5.3 Battery Charging time (hours from empty) 2 Maximum music play time with ANC off (hours) 12 Maximum music play time with ANC on (hours) 10 Maximum play time (hours) 48 Maximum talk time (hours) 6.6 What's in The Box? 1 x JBL Tune Buds earbuds 1 x Charging case 1 x USB Type-C charging cable 1 x 3 sizes of eartips 1 x Warranty / Warning (W / !) 1 x Quick Start Guide / Safety Sheet (S / i)