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- USA
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
Measy AU688-U 20 Channels Wireless Guitar System Rechargeable Musical Instrument Transmitter Receiver, AU688-U Black1. 100 meters transmission distance (330FT) 2. Built in lithium battery, charge once, battery life 5 6 hours 3. Strong anti interference, can penetrate walls 4. Built in damping shaft, 270 degree rotation to adjust orientation 5. Plug and play, lossless sound quality 6. Working channel: Channel 20 7. Receiving sensitivity: 90dBm 8. Frequency response range: 20 20000Hz 9. Frequency range: U frequency 10. Delay time: less than 0. 5ms 11. Sampling rate:
1. 100 meters transmission distance (330FT)2. Built-in lithium battery, charge once, battery life 5-6 hours
3. Strong anti-interference, can penetrate walls
4. Built-in damping shaft, 270 degree rotation to adjust orientation
5. Plug and play, lossless sound quality
6. Working channel: Channel 20
7. Receiving sensitivity: -90dBm
8. Frequency response range: 20-20000Hz
9. Frequency range: U frequency
10. Delay time: less than 0.5ms
11. Sampling rate: 64KHz, 16bit
12. Signal to noise ratio: 95dB
13. Distortion: 0.3%@1KHz
14. Dynamic range: 90dB
15. Size: 11.66x3.66x1.63cm
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 140 reviews
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Product Reviews
★★★★★ 3
Don’t get this
Item Package Quantity: 6
The two sides don’t fit together properly and pop open with the slightest of uneven pressure. There’s practically no clips to keep them together so cards just slide right out of them when picked up vertically. Don’t get this if you are looking for something to keep very expensive items in as they will just get ruined or lost. You get what you pay for.
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Reviewed in the United States on November 14, 2022
★★★★★ 5
My son loved them
Item Package Quantity: 6
Perfect for trading graded baseball cards
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Reviewed in the United States on December 18, 2025
★★★★★ 5
GREAT!
Item Package Quantity: 12
I was a little unsure at first, but this product turned out to be a great choice. It does exactly what I needed, and I’ve been using it without any issues.
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Reviewed in the United States on December 2, 2024
★★★★★ 5
Great for whatnot auctions or any auctions!
Color: Black
I love it it’s perfect!
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Perfect card holder
Color: Black
Sturdy and light! Perfect card holder.
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Reviewed in the United States on March 9, 2026