handy receiver in conjunction with single earphone or headphone for easy and comfortable use
9. Use rechargeable batteries, can work continuously for 15 hours, and equipped with charging box
10. Setting data electricity saving function
11. Within the scope of the infrared emission, no restricted quantity of the receiver
Freedom of movement within the range of IR power radiator
12. Channel se
[Related Keywords : simultaneous interpretation system, translation equipment, interpretation equipment, audio conference system]