3D Glasses (Active Shutter Method) TDG-BT500A 3D glasses with strong wireless communication, resistant to obstacles SONY Genuine Active 3D Glasses, set of 2. Used a few times and stored for a long time. There are no noticeable scratches or stains. No box or instruction manual. The instruction manual can be downloaded from the Sony website. Two unopened Mitsubishi CR2025 batteries are included. The lamp has been confirmed to light up with the included batteries. Operation has not been confirmed, so it is sold as is, and there is no warranty. Returns, refunds, and after-sales support are not available. Thank you for your understanding. 3D SONY Sony Genuine Active 3D Glasses 3D Glasses Glasses Active Shutter Method 3D Active Shutter Active Shutter Method Glasses