Product Specifications: Material: ABS Battery Capacity [mAh]: 300 Battery Life Up To [hours]: 4 Maximum Wireless Range [m]: <10m Sound Isolating: YES Category: Earphones & Headphones Max Output: 10mW Number Of Drivers: 2 Charging Method: Cable Magnet Type: Other Driver Diameter: 13mm Total Harmonic Distortion: 1% Impedance Range: up to 32 Ω Package List: User Manual, Charging Case, Charging Cable Features: With Microphone, Active Noise Cancelling With Microphone: Yes Is Wireless: Yes Support APP: No Resistance: 32Ω Frequency Response Range: 20 - 20000Hz Sensitivity: 104dB Function: for Video Game, Common Headphone, For Mobile Phone, HiFi Headphone, Sport, For Swimming, For Office, For Study Active Noise-Cancellation: No Volume Control: Yes Control Button: No Vocalism Principle: Dynamic Wireless Type: Bluetooth Connectors: Type C Communication: Wireless Style: In-ear Origin: Mainland China Brand Name: MONSTER Brand: Monster Product Model: Monster XKT22 Play Time: About 4h Charging Bin Battery Capacity: 300mAh Charging Time: About 1.5h Bluetooth Version: V5.4