Behringer SD251-BT Quick Start Guide
Quick Start Guide
Battery pod
USB charging port
Charging/Bluetooth LED
Control buttons
SD251-BT
Studio Monitoring Earphones with
Bluetooth* Connectivity
V 1.0
LEGAL DISCLAIMER
Music Trib e accepts n o liabilit y for any lo ss which may b e suere d by any perso n
who reli es either w holly or in p art upon a ny descri ption, ph otograph , or statem ent
contained herein. Technical specications, appearances and other information
are subj ect to cha nge witho ut notice. A ll tradema rks are th e proper ty of thei r
respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound,
TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio
are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music
Tribe Glo bal Brand s Ltd. 2021 All rig hts rese rved.
LIMITED WARRANTY
For the applicable warranty terms and conditions and additional information
regarding Music Tribe’s Limited Warranty, please see complete details online at
musictribe.com/warranty.
! Important Safety Information
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use th is appara tus
near water.
6. Clean only w ith dry c loth.
7. Do n ot throw thi s produc t in the
re, to avoi d explosi on.
8. Do not exp ose this pro duct to
bright s unshine fo r a long time.
9. Do not dis assembl e or modif y
this product.
10. Please s tore this pr oduct in a
clean and dry environment.
Accessories List
11. Ch arge it once a m onth
(minimum).
12. Do not l eave unatt ended
while charging.
13. WARNING! Choking and
Swallow ing Hazard . Keep the
produc t safely o ut of reach o f
childr en and pets . The small
size pre sents a cho king and
swallowing hazard. Failure to
follow i nstruc tions may le ad to
permanent damage or death.
14. WARNING! To prevent p ossible
hearin g damage, do no t listen
at high vo lume levels f or long
periods.
• SD251- BT earphon es x 1 pair
• Zipper case
• Sili cone sleev es in 3 sizes
• USB ch arging ca ble
• Cleaning tool
• This quick start guide
Features
• Professional studio-grade
monitoring earphones
• Dynamic micro-dri ver provides
wide fr equency r esponse (2 0
Hz - 20 kHz) de livering f ull bass
and detailed highs
• Blu etooth* 5.0 te chnology f or
exceptional sound quality with
up to 33 ft (10 m) of wi reless
freedom
• Bui lt-in CVC 8.0 i solates th e
user's voice from surrounding
clutt er for clear p hone
conversation
• Sound-isolating design blocks
outside noise for detailed
musical experience
Controls
and microphone
• Secure, over-the-ear cable
design e nsures in -ear stab ility
and comfort
• 360 -degre e rotatin g
gold-plated MMCX lock-snap
connector for exibility and
versatile connectivity options
• Bluetooth communication
cable for seamless phone calls
and eo rtless mu sic contro ls
• Up to 7-h ours of bat tery lif e -
USB charg ing cable i ncluded
• Zip per case in cluded to en joy
your music on-the-go
• Inc ludes foa m and silicon e
ear-plu gs in 3 sizes to e nsure
a perf ect t
Getting Started
Charging
• Bef ore use, pl ease read th is
quick start guide carefully and
keep it in a s afe place.
• Plea se fully ch arge the ear buds
before use.
• Do no t leave unat tended
while charging.
• Plea se regula rly charge t he
earbud s if you do not us e them
for a long t ime (more tha n
3 months).
WARNING: Avoid the following
• Rep lacement of a b atter y that
can defeat a safeguard.
• Dis posal of a ba ttery in to re
or a hot oven , or mechani cally
crushi ng or cutt ing of a bat tery,
that can r esult in an e xplosion .
• Leav ing a batte ry in an
extremely high temperature
surrounding environment
that can r esult in an e xplosion
or the leakage of ammable
liquid or gas.
• Plea se use the su pplied ch arger
cable only.
• There is built-in easy voice
prompt f or low bat tery that
infor ms the user to r echarge
the devi ce.
• A bat tery sub jected to
extremely low air pressure
that may re sult in an ex plosion
or the
• leakage of ammable liquid
or gas.
Wearing, inserting and removing the earphones
Nozzle
Nozzle
Tool
1. These ea rphones s hould be wor n with the c ables rout ed over the ea r.
Then, th e cables ca n be run to your m onitori ng system e ither in fr ont or
behind , s imilar to thi s illustr ation:
2. Insert e ach earph one so makes a t ight seal in t he ear canal . A good seal wi th
the ear ca nal is neces sary fo r optimum so und qualit y, especia lly for bas s
frequencies.
3. If you noti ce a loss of bas s frequen cies, gent ly push the e arphone de eper
into the e ar canal to pr oduce a bet ter seal. If t his adjust ment does n ot
improve t he bass res ponse, you c an also swi tch to a dier ent sleeve .
WARNING: Avoid pushi ng the earp hone in beyo nd the ear can al.
4. To remove the ea rphones , rmly hol d each earph one’s outer c ase betw een
your ng er and thumb a nd twist g ently.
Choosing, installing and changing sleeves
SD Serie s earphon es come wit h a selecti on of soft s leeves in th ree sizes,
from sm all to large
WARNING: Always mak e sure to prote ct your ea rs by muting o r lowering y our
monito ring sys tem’s volume do wn all the way b efore ins erting th e earphon es.
1. Choose a n earphon e sleeve wit h the best t a nd the bes t seal to isol ate your
earphone mix from outside sounds.
2. Slide the sl eeve onto ea ch earpho ne’s sound noz zle. Appl y light pres sure,
and if nec essary r otate the sl eeve as you go u ntil secu re.
3. Make sure th e sleeve com pletely co vers the noz zle and the ared barb.
4. Try inser ting the ea rphone int o your ear can al to test th e t.
5. If the t is to o loose or ti ght, twis t and pull to re move the sle eve from th e
nozzle a nd replace w ith a sleeve i n the next a ppropri ate size.
NOTE: If the ba rb or nozzl e is expose d beneath t he sleeve, th e sleeve is no t
insta lled prope rly. Sleeve s that do not t s ecurely o ver the nozz le and barb
should be replaced.
Bluetooth pairing
You will hea r voice promp t for pairi ng after p ower on. Plea se refer to f unctio n
map table for other functions.
Blueto oth func tions for B luetooth -enable d earphon es can be acce ssed fro m the
contro ller pod emb edded in th e earphon e cable:
Power ON / OFF
Power On Press ce nter key for 3 s econds
Power O Press cente r key for 3 sec onds
Music Controls
Play the Trac k Press ce nter key once
Pause th e Track Press ce nter key once
Volume Up by 7 % Pr ess "+" ke y
Volume Dow n by 7% Press "-" ke y
Nex t Trac k Long Pre ss "+" key
Previous Track Long Pre ss "-" key
Mic Control
Mic mute / u nmute Long pre ss center key
Voice Assist Control
Activ ate Voice Ass ist Pre ss center key t hree time s
LED Indication
Mode LED color/activity
Charging Red
Fully cha rged Red ligh t will turn o
Pairing mode Red and Blue lights ashing alternately
Bluetooth connected Blue
Cleaning
1. If you not ice proble ms with sou nd qualit y not relate d to the t insi de
the ear ca nal, remove t he sleeve an d check the e arphone no zzle for
obstructions.
2. If the noz zle is blocke d, use the in cluded cle aning tool t o clear the b lock.
3. Replace th e sleeve ont o the nozzl e, and re-in sert the e arphones i nto
your ear to t est the sou nd.
Maintenance tips
• Keep the earphones and sleeves clean and dry.
• To clea n, remove the s leeves fr om the earp hone nozzl e, gently ri nse
in warm wa ter and allow t o air dry. Sle eves shoul d be complet ely
dry before
• Ins pect slee ves for dama ge and repla ce as neces sary.
• Avoid exposing the sleeves to extreme temperatures.
• Rep lace sleeve s that do not t p roperly.
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