1. Frequency response: 20~20000Hz. 2. Sensitivity: 116dB±3dB. 3. Audio plug: 3.5mm interface. 4. Product size: 95*17*9mm, product weight: 10g. 5. Microphone: support, Remote control: not supported. 6. Charging port: Type-C interface, charging current 1.5A, Type-C interface is a sub-two transfer cable allows you to access the charging cable and headphones at the same time.