Support wholesale Support dropshipping Free custom logo Support OEM and ODM Fast shipping within 24 hours - supports 24-hour shipping every day, even on holidays Please contact our customer service to provide you with factory wholesale prices and VIP discounts When there are multiple ordering options for a product, please select the option you need to place an order If you have any questions about your order, please contact our customer service and we will provide you with assistance quickly Origin : Mainland China Power Source : Other Origin : Mainland China Certification : CE State of Assembly : Ready-to-Go Battery Included : No Communication method : Other High-concerned chemical : None Inbox adaptor : No Does It Includes Wireless Communication : No Product name: Roller Bluetooth remote control Bluetooth version: V5.3 Transmission distance: 10 meters Charging interface: Type-C Product color: black/white/pink Charging compartment capacity: 180mAh Remote control capacity: 30mAh Usage time: about 24h Input current: DC 5V Product size: 39*33*23mm Product function: Roller page up and down, roller slowly slides up and down, adjust the focal length, turn the e-book left and right, turn off the screen, like, return to the main menu, take photos and videos, skip songs, pause playback, increase and decrease volume