4 Pairs Wireless Earphone Replaceable Silicone Ear Cap Earplugs for Huawei FreeBuds 4i / FreeLace Pro / Active Noise Canceling Earphones 3(Black) Filter-14.1 inch Dual laser (digital/physical laser)

Dual laser (digital/physical laser)

Suitable for Micro USB interface devices

Voice coil diameter: Φ18

Wireless protocol: IEEE 802

4 Pairs Wireless Earphone Replaceable Silicone Ear Cap Earplugs for Huawei FreeBuds 4i / FreeLace Pro / Active Noise Canceling Earphones 3(Black) Filter-14.1 inch Dual laser (digital/physical laser)1. Silicone material, durable, non toxic, no peculiar smell, no irritation to the human body, no allergic reaction 2. Wearing soft and comfortable, with stronger sound insulation effect 3. S M L size can meet your various size requirements 4. Suitable for Huawei FreeBuds 4i FreeLace Pro Active Noise Canceling Earphones 3 5. Bluetooth headset is not included Specification: Package Weight One Package Weight 0. 04kgs 0. 09lb One Package Size 8cm * 6cm *