Features: Style: In-ear Vocalism Principle: Dynamic Active Noise-Cancellation: Yes Control Button: Yes Communication: Wireless Volume Control: Yes Sensitivity: 128dB Is wireless: Yes Certification: YES Number Of Drivers: 2 Plug Type: NONE Impedance Range: up to 32 Ω Connectors: None Model Number: Bluetooth headset Earcups Type: Semi-open Headphone Pads Material: Other Bluetooth Version: 5.0 Support Memory Card: No Waterproof: Yes Frequency Response Range: 20 - 200000Hz Total Harmonic Distortion: 0% Charging Method: Charging case Magnet Type: Other Wireless Type: bluetooth Max Output: 132mW Line Length: 0m Support APP: Yes Function: for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport Package List: User Manual,Charging case,Charging Cable Codecs: AAC Driver Diameter: 0mm Resistance: 32Ω With Microphone: Yes Features: waterproof,With Microphone style 1: Bluetooth headset style 2: PK I9 I12 I11 style 3: For apples style 4: For style 5: for x Sensitivity: -dB Max Output: -mW Line Length: Nonem Number Of Drivers: - Model Number: -Bluetooth 5.0 Wireless Earphones Driver Diameter: -mm Frequency Response Range: 20 - 22000Hz Total Harmonic Distortion: -% Color: Black, White Battery: 50 mAh earphones, 300mAh charging compartment Function 1: Noise canceling Function 2: Waterproof Listening to the song: 4 hours Weight: 57g Support Retail: Support epacket/Fast Shipping Support: ,Note: Due to manual measurement and light reasons, 1-3cm error and slight color difference is allowed, please prevail in kind.