1. Using high-quality chips, the performance is stable.2. Built-in 350mA lithium battery, can be used continuously for 60 hours (turn on the backlight, it can be used continuously for 5 hours).3. Micro USB cable charging, charging for about 3 hours4. Sleep function: If no operation is performed, the keyboard will automatically enter the power saving mode within 15 minutes.5. Universal for iOS/Android/windows6. 59 key design, with 14 IPAD shortcut function keys.7. The keys are screen-printed with UV peritoneal treatment, which is durable and will not fade after 5 million times of friction and beating. The surface of the keyboard is brushed, which is very textured8. Scissor foot button design, sensitive typing, quick response and good hand feel.Product Specifications:1. Modulation mode: GFSK2. Working voltage: 1.8-3.6V3. Charging time: 3 hours4. Lithium battery capacity: 350mA5. Sustainable use time: 60 hours (5 hours of continuous use when the backlight is turned on)6. Lithium battery life: 3 years7. Standby time: 30 days8. Size: 248mm*150mm*6.4mm9. Net weight: 460gSpecification: General Compatible with Lenovo: Tab M10 HD (2nd Gen) Package Weight One Package Weight 0.64kgs / 1.41lb One Package Size 28cm * 21cm * 2.5cm / 11.02inch * 8.27inch * 0.98inch Qty per Carton 40 Carton Weight 22.80kgs / 50.26lb Carton Size 52cm * 44cm * 30cm / 20.47inch * 17.32inch * 11.81inch Loading Container 20GP: 388 cartons * 40 pcs = 15520 pcs40HQ: 901 cartons * 40 pcs = 36040 pcs