The device can connect to an external WIFI module via OTG to access Internet and play online with another device in local area network Powerful battery life Built-in 4200mAh polymer battery.The battery adopts two-way protection of charge and discharge.Play for 8 hours on a single full charge Double joystick Exquisite curved design of joystick, You can choose corresponding joystick according to different games Top combination button Upgrade L/R key with four buttons, button curvature, and appropriate spacing size. Enhance grip and release fingers to achieve better gaming state Hign-concerned Chemical:None Motion-sensing technology:Handheld Games Type:Classic Battery Capacity[mAh]:4200 Category:Handheld Game Players Screen Resolution:800x480 Screen Type:IPS Display Size:5.1Inch Memory: 64g (The product printed words depending on batch, but this does not affect use) Color:Black Material:ABS Package Contents: 1 * Retro Handheld Games Console Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.