Feature 11. Built-in 20000/30000 classic games: 64G/128G SD card, no repetition.For LINUX system, you can add emulators and games in related formats. Perfectly compatible for PSP, for N64, for DC, for SS, for PS1, for CPS1, for CPS2, for FBA, for NEOGEO, for GBA, for GB, for SFC, for FC, for MD, for SMS, for GG, for MSX, for PCE, for WSC, translation games, etc. 20 game formats. 22. 4.95-inch OLED screen: 4.95-inch high-definition OLED screen, full viewing angle/960544, the display is very clear. Tempered glass, anti-scratch and anti-drop double protection, provide exciting gaming experience and better eye protection. 33. 3500mAh large-capacity battery: Built-in 3500mAh large-capacity lithium battery, long standby and battery life. Supports up to 6 hours of gameplay. Support USB data cable fast charging, bring a lot of joy and happiness to the journey. 44. High-quality material: L1/L2/R1/R2 buttons use FRETTING buttons, the button life is increased by 3 times, and the button is pressed millions of times. Two built-in speakers with inspiring sound. The case features a unique high-quality translucent material. This is the best birthday present for a child.Body size: 19*8.4*2.1cm(7.48*3.30*0.82inch)Color: black, blue, bronze grayDisplay: 4.95-inch OLED full viewing angle, 960*544CPU: Quad-core 64-bit Cortex-A55, main frequency up to 1.8GHzRAM: LPDDR4 1GBMemory: 16+64G / 16+128GNumber of games: 16+64G (20000)/16+128G (30000)WiFi/Bluetooth: 2.4/5G WIFI 802.11a/b/g/n,Bluetooth 4.2Function: LINUX systemEmulator: compatible for PSP, for N64, for DC, for SS, for PS1, for CPS1, for CPS2, for FBA, for NEOGEO, for GBA, for GB, for SFC, for FC, for MD, for SMS, for GG, for MSX, for PCE, for WSC, etc. 20 game format.Support users to download related format games"Web Multimedia: compatible for : music, video, TV...Language: MultilingualExternal function: high-quality dual-speaker stereo speakersBattery: Lithium-ion polymer battery 3500mAh, 6 hours of battery lifeTF card: support TF card expansion, up to 512GBOther functions: "Support built-in WIFI online matchmaking, streaming, High Definition Multimedia Interface, vibration motor, 3.5mm stereo headphonesPackage List1*Game console1*Instruction1*Charging cableNoteDue to the lighting effects and shooting angles, there is color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.