After the receiver will switch to power on (ON) position, see the channel number of the receiver inside the display, and the transmitter can be consistent channel number, press the up key or down key to adjust the channel, channel adjustment, push the switch to the lock (LOCK) position, the receiver must plug in the headphones. Users themselves properly adjusted volume. Push the receiver will switch to the off position after use (OFF), into the collection of the box. Size 53 × 76 × 13mm WUS068 receiver (polymer lithium version) multiple groups simultaneously using the same occasion, the need to each transmitter channel setting stagger, such as: Group 1 team transmitter C H01, its members Receiver all set to CH01, Group 2 team, the transmitter CH02, which players sink all set to CH02 `` 32 team set the transmitter CH32, which players sink all set to CH 32 the first time the system needs to be set channel, then there is a channel memory function, using an open power switch can be used normally. (E) Operation Notes 1. The group of instructors and visiting guests as far as possible within the line of sight, in the corner of the stairs and the wall will affect the distance. 2. When the same room with greater than 32 groups visiting guests, please choose our products or other models will visit stagger arrangement.