Active shutter glasses for use with projectors. Works with NP115, NP115-R, NP215, NP215-R, NP216, NP216-R, NP-V260, NP-V260-R, NP-V260X, NP-V300W, NP-V300W-R, NP-V300X, NP-V300X-R, NP-VE281, NP-VE281-R, NP-VE281X, NP-VE281X-R.