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freemate DA-275 Owner's Manual

Telephone headset amplifier
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Summary of Contents for freemate DA-275

  • Page 2 Telephone Headset Amplifier Owner s Manual (DA-275)
  • Page 4 Introduction Your new headset amplifier is a device that helps you to use your telephone, computer and external audio device through a headset. It gives you hands free, fatigue-free conversation, Internet phone call and listening music from computer soundcard or the external audio device through a headset at the same time.

  • Page 5: Features And Overview

    1. Features & Overview [04]...
  • Page 6 Features 1. Tel/PC button(DA-275 ONLY) Press it for telephone, internet You can use AC power adapter phone and computer(or Audio) use (3V DC) instead of battery. Depress it for telephone use only. 7. Handset Jack (HANDSET) 2. Main Listening Volume...
  • Page 7 Connect your headset to this Connect the attenuated cord jack. between stereo jack for recorder and recorder s for call 15. Tone Control Switch(DA-275 ONLY) recording. Set the tone control switch to be bass or treble sound. 23. Stereo/Mono Selection Switch(DA-275 ONLY) 16.

  • Page 8: How To Install

    2. How to install Stage 1. Installing Batteries We recommend two AA alkaline batteries (Not included) for installation. Operational battery life are about 2,000 hours. - Remove the battery cover on the side of amplifier. - Install two AA alkaline batteries and replace the battery cover - Press the Mute button to confirm if the batteries are well fitted or not.
  • Page 9 Notes : When you use a monaural headset, slide the knob to the right (M)(Feafure no.23) And when you use a stereo headset supplied by us slide to the left (S).(DA-275 ONLY) 4. Connect a computer cord supplied (Feature no. 20) between the PC jack of amplifier (Feature no.
  • Page 10 3. HOW TO TEST BEFORE USE Stage 1. Checking for telephone use Wearing the headset, Lift the handset from its cradle, position it off-hook and listen. 1.Compatibility setting between telephone and amplifier If you can t hear dial tone at factory setting, adjust the compatibility switch between telephone and amplifier as follows...
  • Page 11 2. Adjustment of listening / Transmission volume Firstly, place the digit no.5 of listening volume controller to the center and set the white marking part of microphone volume controller to the center. After the above setting, if the unit is not working properly, use the following adjustments for the best set-up.
  • Page 12 3) If there is high pitched feedback when the volume is set to normal usage levels, adjust the distance of headset boom between the microphone head cap and your mouth. The proper distance is one inch apart from your mouth. 3.
  • Page 13 At once, you should use our specified stereo headset to hear stereo sound. 2. PC listening volume controller (DA-275 ONLY) 1) Adjust listening volume of music, internet phone from computer or other audio device by sliding.
  • Page 14 3. Operation 1) To make an Internet phone call, a telephone call, listen music from computer and other audio device at the same time.(DA-275 ONLY) Press TEL/PC button for internet phone call, telephone call,and computer music (or audio). Adjust PC listening volume controller for optimal sound and dial after tone.
  • Page 15 2) To record a call Connect an Attenuated Cord (Feature No.22) optionally supplied between Stereo jack for recorder and your computer or exterior recorder. Operated recording function of the computer or exterior recorder. You may need this record for your job references or to report the record to the other party or your boss.

  • Page 16: Operation

    4. Operation Receiving by headset : Depress the headset/handset button(feature no.3), wear the headset. Lift the handset from its cradle and place it "off hook" when the telephone rings. You can answer the telephone by headset. Making a call by headset : Depress the headset /handset button (feature no.3), wear the headset.

  • Page 17: Troubleshooting

    5. TROUBLESHOOTING The following information covers common problems and suggests solutions. If the amplifier and headset are not operating properly, follow the suggestions in this section CALLERS CAN’T HEAR ME AND I CAN’T HEAR MY CALLERS 1. Check the installation. Check all cords are properly connected. 2.
  • Page 18 THE PEOPLE I’M TALKING TO SAY I SOUND UNCLEAR OR TOO FAR AWAY. Adjust the position of your microphone. The best place for the microphone is not directly in front of your mouth, but near the corner of it, smiliar to the way you position the telephone handset.

  • Page 19: Warranty

    WARRANTY We will repair or replace, at our opinion, this product if found defective due to materials or workmanship within the warranty period beginning from the original date of purchase. This product is warranted by authorized representative for the period specified. The original dated purchase receipt must be presented to the authorized service center when service is rendered.

  • Page 20: Warranty Card

    WARRANTY CARD Mr./Mrs./Miss/Co. Telephone No. Address Model No. Brand Serial No. Invoice No. Dealer Date of Purchase Note : THIS WARRANTY CARD WILL BE VOID IF IT IS NOT MAILED BACK TO OUR COMPANY WITHIN 10 DAYS FROM DATE OF PURCHASE, WARRANTY CONDITIONS (PLEASE SEE OVERLEAF)

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