Step 1

Press your finger firmly on your Discover D904 battery until it begins to slide out. discover d904 battery

Step 2

Remove your Discover D904 battery discover d904 battery

Step 3

Install your new battery the same way it was removed. Let the new battery get a full charge until the battery indicator is fully illuminated and your battery is now refreshed back to new! discover d904 battery For more helpful setup guides, follow the Discover D904 wireless headset resource center. headset rental Rent the best headsets in your office starting at only $8/mo
Category_setup guidesDiscover d904Discover d904 batteryDiscover d904 headset

Leave a comment

All comments are moderated before being published

Yealink HA64 Pro

Ranked by Headset Advisor as the best wireless headset in 2025.

Learn More

Sound like a pro on every call, even if your dog is barking in the background

Eliminate background noises for your microphone with Neep's AI-powered noise cancellation.

Try neep Free
    1 out of ...

    Blog posts

    View all
    Yealink HA64 Pro vs Savi 8200: Top Noise-Cancelling Alternative

    Yealink HA64 Pro vs Savi 8200: Top Noise-Cancelling Alternative

    best 8200 wireless headset alternativeDoug Merritt
    Yealink HA64 Pro vs Jabra Engage 65/75: Which Wireless Headset Wins for Office Calls?

    Yealink HA64 Pro vs Jabra Engage 65/75: Which Wireless Headset Wins for Office Calls?

    best headset for business callsDoug Merritt
    6 Steps To Enhancing Headset Performance With AI Noise Cancellation 2025

    6 Steps To Enhancing Headset Performance With AI Noise Cancellation 2025

    ai noise cancellation for callsDoug Merritt
    Mastering Microphone Sound Quality and Noise Cancellation for Professional Calls

    Mastering Microphone Sound Quality and Noise Cancellation for Professional Calls

    best microphone for zoom callsDoug Merritt
    arm of businessman opening a glass door on way into busy office with several people at their desks working

    10 Tips for Improving Call Clarity in Noisy Environments

    call clarity tipsDoug Merritt

    Shop our Best Selling Headsets

    View all
    yealink bh71 bluetooth headsetYealink BH71 - Versatile Bluetooth Wireless Headset For Work
    Yealink Yealink BH71 - Versatile Bluetooth Wireless Headset For Work
    Sale priceFrom $91.85Save $27.15 Regular price$119.00
    20 reviews
    Only 1528 units left
    Choose options
    Yealink WH63 Earpiece Wireless DECT HeadsetYealink WH63 Earpiece Wireless DECT Headset
    Yealink Yealink WH63 Earpiece Wireless DECT Headset
    Sale priceFrom $120.00Save $69.00 Regular price$189.00
    4 reviews
    In Stock
    Choose options
    Discover Adapt 20 Convertible Wireless Headset: Noise CancellingDiscover Adapt 20 Wireless UC Headset - Headset Advisor
    Discover Discover Adapt 20 Convertible Wireless Headset: Noise Cancelling
    Sale priceFrom $179.99Save $10.00 Regular price$189.99
    8 reviews
    Only 238 units left
    Choose options
    Discover D722U Over-Ear Noise Cancelling USB Wired Headset For Computer (Boomstick) - Headset AdvisorDiscover D722U Over-Ear Noise Cancelling USB Wired Headset For Computer (Boomstick) - Headset Advisor
    Discover D712U Dual Speaker USB Wired Office Headset For Professionals - Headset Advisor
    Discover Discover D712U Pro Audio USB Wired Headset For Work (Dual Speakers)
    Sale price$99.99 Regular price$119.99
    6 reviews
    Only 889 units left
    Discover D713U On-Ear USB Wired Headset - Headset Advisor
    Discover Discover D713U: Comfortable On-Ear USB Headset with Mic
    Sale priceFrom $39.99Save $40.00 Regular price$79.99
    40 reviews
    Only 335 units left
    Choose options
    epos impact 1060
    EPOS EPOS Impact 1000 Dual Speaker Noise Canceling Headset With HD Mic
    Sale priceFrom $212.48Save $56.52 Regular price$269.00
    14 reviews
    Only 74 units left
    Choose options