. Earphone Specifications Driver Type Dynamic, 12mm Form Factor True wireless earbuds Frequency Response 10Hz - 20.4k Hz Impedance 32Ω Sensitivity 106.5±3 dB 1mW at1kHz T.H.D ≦1% Ear Tips Silicone, 3 sizes Microphone Specifications Type Built-in Element MEMS Polar Pattern Omni-directional Frequency Response 50Hz-6.7kHz Sensitivity -16dBFS (@1kHz, Pin=1Pa, 94dB) Connections and Features Audio Connection 2.4Ghz, Bluetooth® wireless connections USB Audio Format Stereo USB Specification USB 2.0 Sampling Rates 48kHz Bit-Depth 16-bit Included Virtual Surround Sound DTS Headphone:X® Audio Controls Multifunction touch controls, mic mute Battery Specifications Type Rechargeable lithium-ion Battery Life Earbuds up to 10 hours, up to 33 hours total Charge Time Earbuds 2 hours Charging case 1.5 hours Entire product 4 hours Wireless Specifications Type Bluetooth® Bluetooth Version 5.2 Wireless Range Up to 20m Supported Bluetooth Codecs SBC Supported Bluetooth Profiles HSP.TS, IOPT, A2DP, AVRCP, GAVDP, DID, HFP, HSP Physical Specifications Weight Charging case 36.5g ± 5g Silicone case: 32± 5g Earbud (L/R): 11g ± 2g Low latency USB adapter: 2.5g ± 1g Extension adapter: 8.5 ± 2g Cable length(s) and type(s) 2m USB-C to USB-A