Model: MeiKE MK-550DL - Color: Black - 1.5" LCD display - Holds 6 AA batteries or 2 LP-E8 batteries (battery compartment included) - Doubles the battery capacity of your camera effectively extend your shooting time - Built-in standard vertical shutter button AE/EF lock button AF point selector button - Supports exposure control - Grip was powered by 1 x CR1620 battery (included) - Compatible with Canon 550D - Package includes: - 1 x Battery timer grip - 2 x Battery compartment - 1 x Remote control (1 x CR2025 included) - 1 x CR1620 battery - 1 x Chinese/English user manual