The Godox V1-P (Pentax) + AK-R1 Accessory Head Kit includes both the new Godox V1 and the Godox AK-R1.  Godox V1-P Round Head Flash for Pentax Offering a powerful 76Ws output along with a distinct design, the Godox V1 Flash is an advanced light source with features that clearly reflect the current state of the industry. Compatible with Pentax P-TTL, this flexible on-camera light is distinguished by its round head, which provides soft, smooth light with gradual fall off that augments the flattering output. The head rotates 330 degrees, tilts -7 to 120°, and has a magnetic surface for lightning-fast attachment of Godox's accessory light modifiers.The V1 is powered by a removable 2600mAh lithium-ion battery that will give you up to 480 full-power flashes on a charge, so you don't miss any of the action. Speaking of speed, the V1 recycles to full power in just 1.5 seconds, fast enough to keep up with your subject. It also supports High Speed Sync up to 1/8000 sec, for managing bright backgrounds and shooting with wide apertures, and the V1 supports front and rear-curtain sync.The V1 has an optical slave but it's also got a built-in 2.4 GHz receiver, which accepts wireless signals from Godox X System transmitters. In fact, you can control up to four wireless groups in a master/slave configuration whereby settings made on the V1 are duplicated on the slave flashes. Other convenience features include an AF assist lamp, a 3200K LED modelling lamp, and a 2.5mm port for cabled triggering. Specs Guide Number Not Specified by Manufacturer Coverage Full-Frame28 to 105 mm Bounce Head -7 to +120° Swivel Head 330° Flash Duration 1/300 to 1/20000 Second Recycle Time Approx. 1.5 Seconds Secondary Illumination None Exposure Control Exposure Control P-TTL Flash Modes Hi-Speed Sync, Second-Curtain Sync Wireless Wireless Operation RadioUp to 328.08' / 100 m (Master, Slave) Wireless Channels 32 Wireless Groups 4 Power Internal Power 1 x Rechargeable External Power Pack Compatible No General Mount Shoe Off-Camera Terminal 2.5 mm Dimensions (W x H x D) 3 x 7.8 x 3.7" / 76 x 197 x 93 mm Weight 1.17 lb / 530 g (with Battery) AK-R1 Please note: This is the brand new updated version of the Godox AK-R1 (Retail Set). The design of the Bounce Card and Diffuser Dome have been updated. The Godox AK-R1 Accessory Kit is the complete lighting modifier kit to pair with the brand new Godox V1 and the Godox AD200 Portable Flash and the H200R Round Flash Head. The kit includes a: Four Leaf Barndoor Collapsible Snoot Bounce Card Attachment Honeycomb Grid Diffuser Plate Diffuser Dome Gel Set Portable Carry Pouch All pieces mount to the Godox V1 directly or the AD200's H200R Round Head with high powered magnets allowing quick and easy interchanging between each each lighting modifier. The evolution and growth of the component system for the AD200 is amazing. This kit is just another addition to make the AD200 one of the most versatile tools available for photographers.  What's Included 1x Godox V1 TTl Li-Ion Camera Flash Unit1x Li-ion Battery1x AC Plug1x USB Battery Charger1x USB Cable1x Cold Shoe Mini Stand1x Carry Case Protection Pouch1x Instruction Manual1x Four Leaf Barndoor1 x Collapsible Snoot1 x Bounce Card Attachment 1 x Honeycomb Grid1 x Diffuser Plate 1 x Diffuser Dome 1 x Gel Set 1 x Portable Carry Pouch