1. Volume adjustment controller, 360-degree rotary encoder for lossless sound quality.
2. Connect the computer and rotate the button to quickly adjust the volume of the computer, bid farewell to the trouble of the mouse point, watch the video / live broadcast, do whatever you want.
3. Operation method: Rotate – adjust the volume, press – mute / unmute, press while rotating – quickly adjust the volume. Simple and fast.
4. USB interface device is universal, can connect U disk, hard disk, mouse and many other USB devices.
5. USB plug and play.
6. Compatible with multiple systems, support Windows, Android, Mac system, no need to manually install the driver, simple and convenient.
7. The OTG cable can be used to connect Android mobile phones, car navigation, TV and other devices (OTG lines need to be purchased separately, and Apple phones are not supported at this time).
8. Replaceable USB cable design, can adapt to different needs and be more flexible. It is common with common mobile phone charging lines. The default wiring is 2 meters long, which is convenient for long distance adjustment.
9. Blue breathing light enhances the sense of interaction and automatically extinguishes for a long time.
10. The bottom PU anti-slip foot pad is good for non-slip.
11. Brushed anti-skid knobs, knobs with anti-slip matte area, single finger can slide, feel comfortable.
12. Scope of application: The standings of wedding, recording, live broadcast, etc., directly adjust the operating system volume without any damage to the sound quality.

System message:
1. Android: SD8227_HW: 1.0_SW: 0.3.4_20170818.
2. System version: 4.4.2.
3. Kernel version: 3.4.35.
4. DDR: 1G.
5. FLASH: 16G.
6. CPU model: ARMv7 Processor rev 3 (v7) x4.
7. Resolution: 1024×600.
8. CAN Pro: Smart City – Volkswagen – V15.9 – No connection.
9. McU1: HW8227-0.1-SW0-6.0.

Parameter:
1. Material: alloy.
2. Interface: Micro USB
3. Scope of use: Windows/Android devices for Windows/Mac systems.
4. Size: 83x46x16mm.