HTC One M9 Charger, iMobi4 USB 2.0 ON-THE-GO OTG Sync and Charge Desktop Charging Cradle Docking Station with Micro USB Data Syncdesktop Dock for HTC ONE M9 - Black Special Exclusive design for your HTC ONE M9 OTG function dock multi-extend your mobile phone, let you enjoy more intelligent convenient life. Cover-mate Case Compatible design fits for protective case with thickness up to 3 mm With circuit protection, anti-overcharge, anti-overheat. Sync and charge your M9 when plugging into your computer with the USB cable, or using the original power adapter.