Users Manual

SM-621D
TECHNICAL SPECIFICATION
Transmission mode
Carrier frequency
Dual speakers
Operating voltage
Transmitter
Frequency response
20 Hz – 20 KHz
Distortion
Range
Working time
≤1%
Signal-to-noise ratio
Up to 100 Feet (without obstacles)
6 hours
Charging time
Receiver
Automatic Frequency Hopping Spread Spectrum
2.4GHz ISM BAND
2*5 Watt, 6 Ohm
7.4V/1000mAh Li-Battery
≥70dB
3 hours
9V / 1.5A,
with a DC 4.0X1.7mm barrel jack
110/240V power adapter
9V / 1.5A,
with a DC 4.0X1.7mm barrel jack
110/240V power adapter
20
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 received, including interference that may cause
undesired operation.
NOTE 1: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in a
FCC Warning
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
NOTE 2: Any 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.
residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the
following measures:
SM-621D
21
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.
FCC Radiation Exposure Statement: