Bamboostan
Bamboo Tunnel Amplifier
A bamboo tunnel that amplifies your phone speaker, no power needed.
Style· With Pen Holder
- Free shipping over ₹299
- Easy 10-day returns
- Real materials, honestly named
- Cash on Delivery
“Beautiful Eco product of India and packaged very well. Thank you!”
Susmit Sarkar Verified
Specifications
Product details
Bamboo Tunnel Amplifier
A single length of bamboo, hollowed into an open tunnel, with a slot cut into the top to hold a phone upright. Slide the phone in with the speaker facing down into the slot, and the tunnel shape carries the sound outward and amplifies it, no charging, no Bluetooth, no power at all.
Available in the Standard shape, or With Pen Holder, which adds a pen holder built into the body alongside the phone slot.
Natural bamboo, wipe with a soft, dry cloth.
Three things make it work.
No power, no pairing
Nothing to charge or connect. Uses your phone's own speaker.
A 26 cm bamboo tunnel
Hollow bamboo, 26 × 6 cm, phone slot on top.
Standard or pen holder
Pen-holder version adds an opening that holds a pen upright.
Louder audio without another gadget.
One less gadget on the desk
Replaces a separate speaker dock with a single block of bamboo, nothing extra to plug in or find room for.
Works with any phone
No app, no pairing, no brand lock-in. Any phone that fits the slot works with it.
Reads as decor, not as tech
Bamboo grain sits on a desk or shelf like an object, rather than announcing itself as another gadget.
Props the phone up either way
Even with the sound off, the slot holds the phone at a steady angle for reading a screen hands-free.
Where it fits your day
The kitchen counter, Standard
Props a recipe video up at full volume, hands free while the pan is on. No pen needed at the stove.
The reception desk, With Pen Holder
Visitors sign in, calls come through, and a pen is already there. The Pen Holder variant is built for a desk that does both.
The travel bag, Standard
One shape, nothing else to pack. The Standard is the version to throw in a bag for a hotel room with no speaker around.
Show 1 more ways to use it
The gift for a desk, With Pen Holder
A more complete desk gift: the phone stand and the pen holder sorted in one object, for someone who spends the day at a desk.
A closer look
A hands-free call on the Standard
Slot the phone into the Standard for a speakerphone call, and the tunnel carries the voice further than the phone propped flat on the desk.
A playlist running in the background
Prop the phone into either version and let music or a podcast play through the day, audible across the room without headphones.
A call comes in while you're mid-signature, on the With Pen Holder
The With Pen Holder keeps a pen upright next to the phone slot, so a call or a note doesn't mean hunting for a pen first.
Who it’s for
- Anyone who watches videos or takes calls at a desk
- People who like a screen-free way to play music
- Minimal desk setups looking for fewer gadgets
- Gifters looking for something a little different
Frequently bought together
No risk in trying it
- Easy 10-day returns
- Free shipping over ₹299
- Cash on Delivery available
- Sustainable bamboo, built to last
Questions people ask
What customers say
102 verified reviews
“Great performance!!!❤️👌❤️”
“Beautiful Eco product of India and packaged very well. Thank you!”
All 2 reviews shown
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Bamboo Tunnel Amplifier
A bamboo tunnel that amplifies your phone speaker, no power needed.