The DualShock 4 (CUH-ZCT1) is the PlayStation 4's controller. It is similar to the DualShock 3, with several new features. One new feature is a built-in two-point capacitive touch pad on the front of the controller, which can be clicked. The controller supports motion detection via a three-axis gyroscope and three-axis accelerometer and vibration. It includes a non-removable, rechargeable 3.7 V, 1000 mAh lithium-ion 10 g (7.4 oz) and has dimensions of 162 mm × 52 mm × 98 mm (6.4 in × 2.0 inbattery, which can be charged while the system is in rest mode. It weighs 2 × 3.9 in).[26] It also lacks a Sony logo on the front due to the Touchpad in its place.Diagram of the DualShock 4 controller from the back left. Shows the light bar (blue) used for player identification, micro USB port, the touch pad, SHARE and OPTIONS buttons and the other controls.The top of the gamepad features a light bar with three LEDs that illuminate in different colors, which can be used to identify players by matching the colors of the characters they are controlling in a game, or to provide enhanced feedback or immersion by changing patterns or colors in reaction to gameplay. (Example: In Grand Theft Auto V when the player is wanted by police the light bar flashes red & blue). It is also used in conjunction with the PlayStation Camera to judge the positions and movements of multiple players.The light bar was developed for PlayStation VR.The controller features several input and output connectors: a stereo headset jack (3.5 mm OMTP TRRS connector), a micro-USB port and an extension port. It can be charged via micro USB, a dedicated charging station, or the console (even when the console is off). It also includes a mono speaker, like the Wii Remote, and is the second major controller in video game history to have such feature.The DualShock 4 features the following buttons: PS button, SHARE button, OPTIONS button, directional buttons, action buttons (triangle, circle, cross, square), shoulder buttons (R1/L1), triggers (R2/L2), analog stick click buttons (L3/R3) and a touch pad click button. These mark several changes from the DualShock 3 and other previous PlayStation controllers. The START and SELECT buttons have been merged into a single OPTIONS button. A dedicated SHARE button allows players to upload screenshots and videos from their gameplay experiences.The joysticks and triggers have been redesigned based on developer input, with the ridged surface of the joysticks now featuring an outer ring surrounding the convex dome caps.The DualShock 4's buttons differ slightly in functionality from the DualShock 3. Only the L1, L2, R1 and R2 buttons are pressure-sensitive, a change from the functionality of the DualShock 2 and 3. This is likely due to the fact that most games did not utilize these buttons as well as due to it not being used on competitors' controllers (including Wii U and Xbox One).The PlayStation 3 is forward compatible with the DualShock 4 ( only via a microUSB cable). Firmware update 4.60 for the PS3 added wireless connectivity; however, motion and vibration functions are not supported. As the START and SELECT buttons are no longer present, the OPTIONS and SHARE buttons respectively replace them.Version issues and modificationsSome initially released DualShock 4's (estimated at around 10%) had wear issues with the rubber surface on the left analog stick, which exhibited excessive wear or tearing after short-term use. In January 2014, Sony issued a statement acknowledging an issue on a small percentage of controllers.In early September 2016, Sony confirmed a second generation of DualShock 4 controllers, known as the DualShock V2 (CUH-ZCT2), which hosts slight improvements over the DualShock 4, including USB communication, a longer battery life and the ability to see the light bar from the top of the touchpad. It released on September 15, 2016.In the initial controller version, the light bar was a permanently illuminated, bright-colored light. The potential for light pollution in darkened playing rooms as well as an interest in extending battery life led to inquiries as to whether the light bar could be switched off by users when not required in game; Sony executive Shuhei Yoshida initially responded in the negative (July 2013), though videogame developers had the option to disable the light in game. In early 2014, the company announced that a future update would allow the light bar to be dimmed. (Enabled by system update 1.70 of April 2014.)Available colors and variationsThe  DualShock 4 (CUH-ZCT1) is available in Jet Black, Glacier White, Urban Camouflage, Wave Blue (black back), Magma Red (black back), Gold, Silver and Steel Black.The newer DualShock 4 (CUH-ZCT2) is currently available in Jet Black, Glacier White, Green Camouflage, Blue Camouflage, Wave Blue (blue back), Magma Red (red back), Gold, Silver, Sunset Orange, Crystal, Red Crystal, Blue Crystal, Steel Black, Midnight Blue, Metallic Copper, Alpine Green and Berry Blue.