K&F Concept Nano-X Variable Fader ND Lens Filter ND8 to ND128 No X-Effect W/O Black Cross for Camera DSLR Mirrorless 37mm 40.5mm 43mm 46mm 49mm 52mm 55mm 58mm 62mm 67mm 72mm 77mm 82mm Size:43mm 8" to infinity range for

8" to infinity range for more responsive focusing depending on the distance to your subject

Driver Type: Dynamic

Fan Cooled: No

Bluetooth enabled: Keep things tidy and remove the need for a cable by connecting your audio source via a Bluetooth capable device

K&F Concept Nano-X Variable Fader ND Lens Filter ND8 to ND128 No X-Effect W/O Black Cross for Camera DSLR Mirrorless 37mm 40.5mm 43mm 46mm 49mm 52mm 55mm 58mm 62mm 67mm 72mm 77mm 82mm Size:43mm 8" to infinity range forFeatures: 18Gbps Transmission Speed Different Lengths Available 4K Resolution Gold Plated Connector Soft but Tangle Free cord Mirror and Extended Mode