Number of English characters not moving: 6 Rechargeable battery or run through AC. Programmable through your PC on XP, Vista, Windows 7, or Windows 8. for . 8 Display Effects (Scroll, Snow, Flash, Hold,Left,Right,Up,Down), 6 Level Speed, 11 animated emoticons Adjustable Brightness (25%, 50%, 75%, 100%) Pins to your shirt or with powerful magnet Store up to 8 different messages, 2 , and 2000 Characters. Specifications: Chinese for four-character / English for sixth-character, highlighted 0603 SMD LED lamp beads Languages: English, Traditional Chinese, Korean, Japanese, Russian, etc; Function: Maximum 2000 characters can be displayed in English, Chinese 650 characters; Installation: Standard for magnets + pin,Pins to your shirt or with powerful magnet Battery capacity: 250MAH Charging time: 2-3 hours, wide voltage: AC110-220V; Working hours: 16 hours; Note: If your systerm is win8 or win10, need to link the computer first, then the computer will automatically install the driver colour: black Glow color: blue Material: plastic size: 93*30*6mm(L * W * H) Package Contents: 1 x Main Body 1 x USB Cable 1 x Driver CD Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.