Shenzhen Changyin Electronics RF988 User manual

OPERATING MANUAL
FCC ID:RKGRF988
WIREESS HEADPHONE

TRANSMITTER
WIRELESS HEADPHONE
System: UHF/RF
Carrier frequency: 926MHZ,926.8MHZ,927.5MHZ
Modulation: FM
Mode: Stereo
S/N ratio: ≥75dB
Distortion: <1%
Frequency response: 50-15000HZ
Impedance: 32 Ohms
Sensitivity: -88dBm±3dB
RF988·O P ER A TI N G MA N UAL HI- FI ST ERE O W IR E LE S S HE A DPH ONE
Channel selection switch
Power supply jack
Audio frequency power switch
LO for 50m and above
HI for 300m and above
OFF for power off
Audio input jack
1. Plug into the adapter
2. Power on the transmitter with DC plug
3. Connect the transmitter to audio source with an audio cable
4 Turn on headphones to listen to the audio
5. Press the power key once on headphones to change channels.
CONNECTION WAY
FEATURES
TECHNICAL SPECIFICATION
•
RF Silent Disco wireless headphone with three channels
•
•
•
One transmitter can connect to more than numerous headphones simutaneously
With reception through wall and ceiling
Operation distance up to 300m
Power saving system makes the headphone power off automatically
if no signal detected for 10 minutes
•
POWER indicator LED
ON/OFF / SWITCH FOR changing channels
Long press for turn on or turn off
Press once to change chennels
Vol+ / Vol-
Push up for Volume +
Push down for Volu me -
USB charging port

IMPORTANT REGULATORY INFORMATION
This device complies with Part 15 of the FCC Rules: Operation is subject to the
following two conditions:
1. This device may not cause harmful interference and
2. This device must accept any interference that is received, including any
interference that may cause undesired operation.
WARNING:
Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.