KZ ZSN Pro in Ear Buds Earphones Yinyoo Hybrid Dynamic Driver Balanced Armature Earbuds Headphones Dual Driver 1DD 1BA Deep Bass Stereo Sound Ergonomic Comfortable Earphones(Gray no mic)

Product features? Brand Name: KZ Model name: KZ ZSN Pro Connectivity : Wired Driver unit: hybird 1BA 1DD Vocalism Principle: Hybrid technology Resistance: 25 ohm Sensitivity: 104 dB/mW Frequency Response Range: 20-40000Hz Control Button: Yes Volume Control: No With Microphone: Optional Connectors: 3.5mm Line Length: 1.2m±3cm What's in the box. 1 x KZ ZSN Pro Earphones 3 x Earbud tips 1 x User manual Notice: 1. Please lower music volume before connecting earphones with audio devices to avoid earbud's diaphragm damage. and suggested to have a rest for a few minutes after every two hours. 2. Yinyoo Audio have the Formal authorization from KZ company , All products in Yinyoo Audio are original.