Thank you for viewing! ONKYO E200BT Wireless Earphones In-Ear Headphones with Microphone Polished Clear Sound Specifications ・Driver: 8.6mm High-Powered Driver ・Output Sound Pressure Level: 108mB/mW ・Frequency Response: 8Hz - 24kHz ・Impedance: 16Ω ・Bluetooth 4.1: 2.4GHz - 2.4835GHz FHSS ・Playback Time: 7.5H ・Standby Time: 170H ・2x Multi-pairing Support The high frequencies extend, providing a very clear sound, making this a high-quality product. Thank you for reading this far. Please continue enjoying your shopping.