Safety Instructions

PREMIUM
BLUETOOTH
HEADPHONES
1.Answer/End/Recent Call & Play/Pause/Stop
2.Volume down/Last Song
3.Volume up/Next Song
4.Power On/Off
正面：英文+德语 62 x 19 cm
BT900
Version:Bluetooth 5.0 Playtime:Up to 8 hours at 50% volume
*Actual playback times may vary. Battery performance may be effected by multiple factors including
but not limited to ambient temperature, listening volume, and/or distance from source audio device.
Long press for move previous song, short press for turn down the volume.
Long press for move next song, short press for turn up the volume.
Press button to play or pause song.
Press button to recieve incoming calls, and end calls. Hold to call most
recent contact.
Included Cables
TYPE-C USB, DC 5V USB
To charge device:
Plug the provided charging cable into the usb charging port on your headset and
plug the large end into usb port on a computer, or ac adapter (not included).
Basic Operations
Powering On/Off
Hold button to power on device and stop playback. Please ensure the headset
is fully charged before use.
Bluetooth Pairing / Connection
Turn on the product. Bluetooth mode will be activated automatically.
Enable bluetooth function on your media device. Search the bluetooth device named BT900.
Click or tap to connect (pair). After successful connection,you will hear “your bluetoothdevjce
is connected”. Now you can play music, or use bluetooth phone functions.
Music Playback Functions
Warnings & Precautions
• The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG,
Inc. and any use of such marks by Sentry Industries Inc is under license. Other trademarks and
trade names are those of their respective owners.
• CAUTION: To prevent electric shock, match the wide blade of the line cord plug to
the wide slot of the
AC receptacle. Insert the plug fully into the receptacle.
• WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus
to rain or moisture.
• CAUTION: Use of controls or adjustments or performance of pro
cedures other than
those specified may result in hazardous radiation exposure.
• W
ARNING: 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.
• WARNING: Do not place the unit on top of any soft, porous, or sensitive surfaces to avoid
damaging the surface. Use a protective barrier between the unit and surface to protect the
surface.
• WARNING: Use of this unit near fluorescent lighting may cause interference regarding use
of the remote. If the unit is displaying erratic behavior move away from any fluorescent lighting,
as it may be the cause.
Important Safety Instructions
1.Read these Instructions.
2.Keep these Instructions.
3.Heed all Warnings.
4.Follow all instructions.
5.Do not use this apparatus near water.
6.Clean only with a dry cloth.
7.Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8.Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
（including amplifiers）that produce heat.
9.Follow applicable laws and regulations for details for transport, shipping, and disposal of batteries.
For details on recycling lithium, lithium-phosphate, and lithium-ion batteries, please contact a
government recycling agency, your waste disposal service, or visit reputable online recycling source
such as www
.batteryercycling.com.
10.Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
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1.Only use attachments/ accessories specified by the manufacturer.
12.Unplug this apparatus during lightning storms or when unused for long periods of time.
13.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.
14.Headphones are capable of producing sound levels which can be harmful to your hearing. Do not
listen at high volume for prolonged periods of time. Headphones may block out surrounding sounds.
Never wear headphones while operating a vehicle. Use with caution. User assumes all risks
associated with the use of this product.
90-Day Warranty
Sentry warrants this product to be free from defects in materials and workmanship for 90-days from
the date of original purchase. This warranty does not pertain to damage resulting from accident,
abnormal use, misuse or neglect. Any defective product will be replaced if returned to an authorized
Sentry dealer or to Sentry directly at: P.O. Box 885, One Bridge St. Hillburn, NY 10931. Please
enclose a check for $5.00 for shipping & handling.
Sentry Industries inc declares that radio equipment BT900 is in compliance with Directive
2014/53/EU. The EU declaration of confirmity is available at
https://sentryindustries.com/european-declaration-of-conformity/
Confirmity with Directives
This product is CE marked to denote conformity with Directives 73/23/EEC (low voltage) and
89/336/EEC (Electromagnetic Compatibility) , as amended.
Environmental Protection
Waste electrical products should not be disposed of with household waste. Please recycle
where facilities exist. Check with your Local Authority or retailer for recycling advice.
Supplier's Declaration of Conformity 47 CFR 47 CFR Part 15.21, 15.105(b) Compliance Information
Sentry Bluetooth Earphone and Headphone
Responsible Party –
Sentry Industries inc
One Bridge street, Hillburn, NY 10931
Tel [phone]
FCC Compliance Statement
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.
FCC ID:2ACP4LBT900 Model #BT900
"NOTE: 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 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:
• 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
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."
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5.Device Pairing LED
6.USB Charging Port
7.Headphone port
8.Microphone