AV learning remote control, BD/DVD compatible, compact design. - Brand: AudioComm - Model: AV-R890Z - Type: AV Learning Remote Control - Features: BD/DVD compatible - Size: Approximately W50 x D20 x H210mm - Power supply: DC3V (AAA batteries x 2) Batteries are not included. I am selling this because I purchased it by mistake. I opened it and tested its operation. I purchased it for 1800 yen. Thank you. Thank you for looking.