Important Only ship to U.S. addresses (Continental United States and Hawaii). Please note that orders cannot be cancelled, returned or refunded once confirmed. This product is for “HaritoraX Wireless” only; it cannot be used with HaritoraX, HaritoraX 1.1, or HaritoraX 1.1B. HaritoraX Wireless(Basic set) is not included, it sold separately. You must have "GX2 Communication Dongle for HaritoraX Wireless" or "GX6 Communication Dongle for HaritoraX Wireless" to use this product. If you do not have a dongle, please purchase one together. The firmware update and the HaritoraX Wireless Body Part Changer app require a Bluetooth connection with a Windows PC. Ships within 2 business days from Japan. Even with only a VR headset and two hand controllers, elbow movement can be represented to some extent. With the "HaritoraX Wireless Expansion set for elbow tracking", you can achieve more accurate elbow movements and take your avatar to the next level.Click here to see the elbow tracking extension set comparison video. Contents Sensor (ELBOW L) x 1 Sensor (ELBOW R) x 1 USB Cable for Charging x 1 Safety Precautions/Warranty HaritoraX Wireless can mix Bluetooth-connected sensors with dedicated dongle-connected sensors. Of course, all sensors can be connected to the dedicated dongle. *The maximum number of Bluetooth connections is 7 sensors, so either the GX2 or GX6 dongle is required when using the elbow tracking expansion set.Below are some combination patterns to help you make your purchase. For details, please visit HaritoraX Wireless product website.