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Battery Life with the M4U TW1 Headphones
The M4U TW1 will alert you with an audible warning when 15 minutes of battery life remain. This warning will repeat every
5 minutes until the earphones are charged, or the battery runs out.
Music playback Time: One earphone – Up to 5.5 hours
Talk time:
To charge the earphone:
1. Plug the USB charging cable to both earphone charging jacks.
2. Plug the USB side of cable into a powered USB port.
Red light on: Charging
Red light off: Finished charging
3. It takes about 2 hours to finish charging.
M4U TW1 EARPHONE CARE
For safe, sanitary use, it is essential to maintain and clean your M4U TW1 earphones periodically. However, excessive
cleaning may cause damage and jeopardize the longevity of the product. When not in use, always store headphones in the
supplied protective case, and store in a clean and dry environment. Avoid storing in extreme heat or cold temperatures and
humidity, and avoid exposure to liquids.
Cleaning...
For regular cleaning, use a slightly damp cloth and gently clean each, then use a dry cloth to remove any residual moisture.
WARNING
Liquids or cleaning solvents can cause irreparable damage to the electronics inside your headphones. The M4U warranty
does not cover such damage.
At the end of its useful life, this product should not be disposed of with regular household waste. It should be returned to a
collection point for the recycling of electrical and electronic equipment.
The materials can be reused in accordance with their markings. Through re-use, recycling of raw materials, or
other forms of recycling of old products, you are making an important contribution to the protection of our
environment. The following symbols on the packaging indicate the recycling mandate.
Your local administrative office can advise you of the responsible waste disposal location.
Two earphones – Up to 4.5 hours
Up to 5 hours
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