Detachable Bluetooth KeyboardThis protective set includes a PU leather TPU case, and a wireless Bluetooth keyboard. Ultra-thin and portable, which is very suitable for traveling and business trips Durable Bluetooth 3.0 KeyboardThe Bluetooth 3.0 keyboard has long-lasting button life, durable to use With StandThe stand case makes it much more comfortable for typing, watching videos, Internet surfing, and reading while keeping both your hands free avoids any joint pain Pen HolderWith a pen holder loop for stylus storage, no need to be afraid of losing your stylus pen stylus is not included Fully ProtectionHigh-quality material combined with excellent workmanship. Fully protects your device against shock, abrasion, scratch, fingerprint, dirt, etc. Specifications Product number AH19 Weight 729g Product size 28.5 x 20.2 x 2cm Bluetooth version 3.0 Effective operating distance 10 meters Modulation mode GFSK Working voltage 3.0-4.2V Working current 2.5mA Standby current 0.3mA Sleep current 40uA Charging current 200mA Standby time 100 days Charging time 3-4 hours Lithium battery capacity 200mAh Sustainable working time 100 hours Lithium battery life 3 years Key force 8010g Key life 5 million clicks Working temperature -10 to 55 Charging port Type-C