Lenovo Professional Slim II Wireless & Bluetooth Rechargeable Keyboard Arabic / English Layout - Grey: BrandLenovoSupported OSOS IndependentPower RequirementKB：420mAh lithium batteryCable Length/Type1 M / USB A to C Battery LifeUp to 3 monthsBattery Charging Time2hours for full chargeHot KeyF1 to F12P1 to P4Special/Added FeaturesProgrammable Keys /Lithium battery /Seamless switch up to 3 d