Nefficar N511 User Manual

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! N511!User!Manual!

Nefficar(

[phone]!!!!!!!!!!!!!!!!!!!!!!!!Email:![e-mail]!!!!!!!!!!!Website:www.nefficar.com! !
!

Please!read!the!instructions!carefully!before!using!it.!

!

Important) Note:) To# avoid# howling# when# turning# on# the#

amplifier#or#when#increasing#the#volume,#keep#microphone#at#

a# distance# from# the# amplifier,# and# please# do# not# point# the#

microphone#towards#the#speaker.#

!
N511! Voice! Amplifier! enjoys! a! great! popularity! among! our!

consumers! with! good! appearance! and! great! sound! quality,! while!

offering!ease!of!use.!They!are!widely!used!by!teachers,!tourist!guide,!
coaches,!lecturer,!etc.!

!

Features:(

1.!Preferred!choice!for!professional!needs;!

2.!Stylish,!ergonomic!and!comfortable!design;!

3.! Hi-Fi! high! sensitivity! imported! MIC,! advanced! circuit! IC,! restrain!

howling!effectively;!

4.!Support!AUX!audio!input,!allowing!you!to!use!it!as!a!small!speaker!

5.!High!decoding!technology,!support!TF!card!&!USB!flash!drive;!

6.!Intelligent! digital! function!module,!low!power! consumption,!high!

efficiency;!

7.! Professional! sound! amplifying! circuit,! amplifying! clearly! without!

howling.!

!

Function(Illustration:(

! !

1Power(switch( and( volume( control:( rotate!the! knob! to”+”!

to! turn! on! the! amplifier,! rotate! to! “+”! continuously! to!

increase!the!volume,!rotate!to!“-”!continuously!to!reduce!the!

volume!till!turn!off.!

2Mode:! short! pressing! "M"! Key! allows! you! to! switch!

between!U-Disk!to!TF!Card!play;!long!press!for!loop!mode.!

3Play(/(pause;( ! !

4Previous;( ! !

5Next;( ! !

6TF(card:(Insert!the!TF!card!into!this!socket!to!play!mp3! !

7USB:(Insert!the!USB!flash!disk!to!this!socket!to!play!mp3!!!

8Charging( indicator:! insert! power! adaptor! to! 11socket! to!

recharge,! this! indicator! will! flash;! and! will! stop! flashing! but!

remain!ON!all!the!time!after!fully!charged;! !!!

9MP3(mode(indicator:( Blue! light! will! be! on!when!amplifier!

turned! on,! will! flash! while! music! playing,! will! slowly! flash!

once!per!3!seconds!while!single!song!loop.!

10Amplify(indicator:! Yellow! light!will! be! on!when! the! wired!

MIC!plugs!into!the!amplifier,!and!the!PA!function!is!ready.!

11DC( 5V( charger( socket:( Please! use! DC! 5V! power! charger,!

the!other!end!connects!with!the!power!supply!AC!110-220V.! ! !

12Audio( Input:! Connect! with! the! computer,! phone,!

MP3/MP4! and! other! devices! using! AUX! mode,! short! press!

“M”!to!adjust!to!the!AUX!IN!mode,!then!it!can!play!the!above!

audio!files!directly.!!!

13MIC(IN(socket:(insert!the!microphone!plug!to!this!socket!to!

amplify.! )

How(to(Use:!

l Wear!the! headworn!microphone!correctly! and!adjust!the! suitable!

microphone! pick-up! angle;! for! l oud ! sound,! keep! the! mic! right! in!

front!of!your!lips;!

l Insert!3.5mm!microphone!plug!into!MIC!IN!socket;!
l Keep!your!head!a!little!away!from!voice!amplifier;!
l Turn!on!the!power,!then!adjust!the!volume;!
l When!the!charging!indicator!light!starts!flashing,!please!stop!use!it!

and!recharge!it!

!

Specification:(

Max!output!power:(

15W(

Frequency!response:!

90Hz-18KHz(

Output!Impedance:(

3Ω(

Work!temperature:(

-10-45(

Charging!voltage:(

DC5V!500mA(

Amplify!time:(

12-18!hours(

Music-play!time:(

6-8!hours(

Charging!time:(

3-5!hours(

(

Caution:!

1) Aim! at!the!headworn!MIC! capsule! when!speaking!and!keep!the!

distance!between!voice!amplifier!and!MIC!longer!than!60cm!to!

avoid!howling.! !

2) Don’t! insert! or! plug! the! connector! frequently! to! avoid! the!

looseness! of! the! socket! or! the! bad! connection.! Please!

distinguish!MIC!and!AUX!plug.!

3) Recharge!timely!when!battery!power!is!low.! !

4) The! amplifier! should! be! kept! in! dry! and! ventilated! area,! rain,!

water,!thump!should!be!avoided.!

5) Original!accessories!are!suggested!if!they!need!to!be!replaced.!

6) Non-professional! technician! is! not! allowed! to! dismantle! or!

repair!the!product;!

!

NEFFICAR(WARRANTY:(

100%!Risk-Free!Satisfaction!Guarantee.!

If! you! have! any! questions! about! our! product,! please! feel! free! to!

contact! with! us,! we! will! try! our! best! to! provide! you! with! the! best!

solution.