Liangying Industrial EHE-TM21 Timbre Active Noise Cancelling Over-Ear Wireless Headphones Instruction Manual

June 6, 2024
Liangying Industrial

Liangying Industrial EHE-TM21 Timbre Active Noise Cancelling Over-Ear

Wireless Headphones

Liangying Industrial EHE-TM21 Timbre Active Noise Cancelling Over-Ear
Wireless Headphones fig1

In the Box

  • EHE-TM21 Timbre Active Noise Cancelling Wireless Headphones (x1)
  • Power Cable (x1)
  • Aux Cable (x1)
  • User Manual (x1)

Safety Precautions

  • This product is NOT a toy, keep away from children and pets.
  • Only use the device according to the instructions in this manual.
  • Never use the device for anything other than its intended purpose.
  • ONLY use the supplied power cable.
  • Do not open this product or attempt to repair the unit yourself if it is not working properly. Doing so risks fire, shock or injury.
  • When not in use, the device should be stored in a dry, cool location, away from sources of water or heat.
  • Do not expose the device or power cable to extreme temperatures (heat or cold), open flames, humid or wet conditions.
  • Do not submerge in water. Do not use in a location where the device or power cable could fall into liquid.
  • Unplug the charging cable when not in use. Do not pull the charging cable to disconnect, or use the cable as a handle.
  • Do not use if the device or power cable is damaged. If a device or power cable is damaged, it MUST be serviced or replaced by the manufacturer or its service agent before using it again.
  • Low battery may cause dysfunction.
  • Do not over charge the battery.
  • This device contains a built-in battery and should not be disposed of with regular household waste. Please consult the local authorities on the correct way to dispose of this device.

Product

Liangying Industrial EHE-TM21 Timbre Active Noise Cancelling Over-Ear
Wireless Headphones fig2

Instructions

Be sure to fully charge the headphones before using for the first time.

Charge the Headphones
  • Plug the small connector of the included charging cable into the micro USB charging port on the headphones.
  • Plug the large connector into a USB power source, such as the USB port on a computer or into a compatible 5V USB adapter (not included) and plug into a wall socket.
  • The LED indicator will glow RED when charging and turn off when fully charged.
Pair & Connect with a New Device

Press and hold the Multi-Function button to turn on the headphones. You will hear a voice prompt saying “Power On”. LED indicator will flash RED & BLUE indicating the headphones are in pairing mode.

  • Open the Bluetooth menu on your smart devices and search for new devices.
  • When you see “Timbre ANC Headphones” listed, tap it to connect.
  • Once connected with your device, you will hear a voice prompt saying “Connected”. LED indicator will slowly flash in BLUE when paired successfully.
  • Previously paired headphones will connect automatically after they are powered on.
  • Press and hold the Multi-Function button to turn off the headphones.
  • The headphones will automatically power off after 5 minutes when they are disconnected.

Music & Calling

When playing music:
  • Press the Multi-Function button to play/pause your audio.
  • Press and hold the Vol+/Next Track button to skip to the next track;
  • Press the Vol+/Next Track button to increase volume.
  • Press and hold the Vol-/Previous Track button to skip to the previous track;
  • Press the Vol-/Previous Track button to decrease volume.
  • When there is an incoming call, press the Multi-Function button once to answer an incoming call, and again to end the call.
  • Double press the Power button to activate the voice assistant of your device, Siri (iOS devices) or Google Voice Assistant (Android devices). You will hear a beep prompt to indicate that your voice assistant is activated.

Active Noise Cancelling Mode

  • Switch the ANC switch to “ANCON” to enter Active Noise Cancelling Mode. You will hear a voice prompt saying “ANC On”. The LED indicator will flash GREEN indicating the headphones are in Active Noise Cancelling Mode.
  • The Active Noise Cancelling Mod e will tune out the surrounding noise and let you focus on your music, online meeting and phone conversation.
  • Switch the ANC switch to “ANC OFF” to turn off ANC. You will hear a voice prompt saying “ANC Off”.

Reset the Headphones

• If you have trouble pairing your headphones, forget the pairing name
“Timbre ANC Headphones” from the list of the connected device and turn off the Bluetooth.
• Turn off the headphones.
• Pair with the headphones again, following the instructions under “Pair & Connect with a New Device”.

Tech Specifications

Rated Output Power 12mW x2
Sensitivity 110dB ± 3db (S.P.L. at 1KHz)
Impedance 24 ohm
Frequency Response 20Hz~20KHz
S/N Ratio > 80dB
Connection Range 33 feet
Continuous Play Time Up to 8 hours (with max volume)
Continuous Play Time Up to 6 hours (with ANC on)
Battery Capacity 400mAh/3.7V
Charging Time 2 hours (from 0-100%)

FCC Information

This device complies with Part 15 of the FCC Rules.
Caution: Any changes or modifications not expressly approved could void the user’s authority to operate the equipment.
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.

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.
RF Exposure InformationThe device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction.

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