The difference between the G4s and G4:
1. All of the two products include the bluetooth 4.0 wireless function , which can be compatible well with the smartphones.
2. G4 must be wired connected the PC.
3. G4s have the 2.4G wireless function that can connect PC, TV BOX , etc wireless.

Highlights
32-bit MCU chip, up to 48 million times per second computation capability
Bluetooth V4.0 / wired 2 connection modes
Compatible with Android 4.0 and later version
Working great with Android smartphones, TV boxes and tablets
Vibration intensity and frequency adjustment
With bright LED key backlight, easy to be found at the darkness
Freely switch between left joystick and cross key, choose the favorite mode you like
Built-in 800mAh li-ion battery, 2 - 3 hours charging time, up to 18 hours playing time

General:
Model: G4
Bluetooth version: V4.0
Compatible with: Android, Android TV/TV Box, Smartphone, Tablet PC
Connection Type: Bluetooth, Wired
System support: Android, PC

Power:
Battery Type: Built-in
Capacity: 800mAh
Battery Voltage: 3.7V
Charge way: USB Charge
Charging time: 2 - 3 hours
Working Time: 18 hours