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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Measy AU680 Wireless Audio Speaker Transmission Box, Transmitter & Receiver, Transmission Distance: 100m, AU680Features 1. High quality transmit with 48k 16bit sampling. 2. Uncompressed transmit. 3. About 100 meters transmit of outdoors. 4. It is easy to use,plug and play. 5. AU680 wireless audio transmitter is a transmitter that enables wireless audio for home entertainment. 6. The product consists of the transmitter and the receiver. Specification 1. Operating Voltage: Transmitter: DC 3. 6V 5. 5V; Receiver: DC 3. 6V 5. 5V 2. Working current: Transmitter:
Features1. High-quality transmit with 48k-16bit sampling.
2. Uncompressed transmit.
3. About 100 meters transmit of outdoors.
4. It is easy to use,plug and play.
5. AU680 wireless audio transmitter is a transmitter that enables wireless audio for home entertainment.
6. The product consists of the transmitter and the receiver.
Specification
1. Operating Voltage: Transmitter: DC 3.6V-5.5V; Receiver: DC 3.6V-5.5V
2. Working current: Transmitter: 250mAh; Receiver: 100mAh
3. Ambient temperature: 0-85 degree C (Transmitter and Receiver)
4. The actual operating frequency range of the modual: 749-770MHz (Transmitter and receiver)
5. Modulation: Pi/4DQPSK (Transmitter)
6. Channel spacing: 4MHz (Transmitter and receiver)
7. Frequency selection method: Transmitter: Carrying channel one-way loop selection; Receiver: Provides automatic search and manual conversion of two models
8. Frequency stability: +/-100KHz (Transmitter and receiver)
9. The actual working channel of the modual: 20CH
10. Module channel spacing: 1MHz
11. Transceiver distance (using transmit power 100nv in open space): 100m
12. Transmit power (default is 100nV when ordering): 1-100mV (default 100mV)
13. Receiving sensitivity: -95dBm(Receiver)
14. Input level: 1.0VpK(Transmitter)
15. Input resistance: 10K ohm (Transmitter)
16. Input interface (Transmitter):
- Three input modes
-Stereo audio input
-Normal microphone input
-Monitor pickup audio input
17. Stereo input level 1: 30mW RL=32ohms (Receiver)
18. Stereo input level 2: 50mW RL=32ohms (Receiver)
19. Output impedance: 1k ohms (Receiver)
20. Input-output gain ratio: 1:01
21. Sphere of influence: 20-20000Hz
22. Time latency: 2.5ms
23. Sampling Rate: 48KHz 32bit
24. Signal to noise ratio: 96dB
25. Distortion: 0.3% at 1KHz
26. Dynamic Range:90dB
27. Left and right channel isolation: 85dB
Package List
1. Transmitter x 1
2. Receiver x 1
3. USB power cable x 2
4. Manual x 1
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
4.2 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Excellent Kindergarten prep
Format: Paperback
My daughter is loving all of the learning exercises and has started feeling more confident heading in to Kindergarten.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Excellent Summer Workbooks - Keeps Kids Engaged and Ready
Format: Paperback
These workbooks have been an absolute lifesaver for keeping my kids on track over the summer! I was looking for a resource that would help them retain what they learned and prepare for the next school year without feeling like a chore, and these deliver perfectly.
What I particularly love is how well **organized they are by days**. This structure eliminates any guesswork and makes it incredibly easy to assign manageable chunks of work each day, which helps to **keep my kids consistently on track**. There's no overwhelm, just steady progress.
The content is engaging, and it genuinely seems to reinforce key concepts in a fun way. We've had **absolutely no complaints** from the kids, which is a huge win for any summer learning material! I highly recommend these workbooks for any parent looking for a structured and effective way to bridge the academic gap during the summer break.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2025
★★★★★ 5
Fun for my Kindergarteners!
Format: Paperback
This activity book is a fantastic, age-appropriate resource that makes summer learning both fun and effective for Kindergarteners transitioning to 1st grade! The pages are thoughtfully designed with easy-to-follow activities that keep young minds engaged while reinforcing essential skills. The addition of flashcards, stickers, and eBooks takes the learning experience to the next level, making practice feel like playtime.
One of my favorite features is the encouragement of hands-on learning and movement through exciting fitness challenges—because learning shouldn't just be about worksheets! It turns what could be a boring review into an adventure filled with creativity and energy. This workbook truly helps bridge the summer gap while keeping kids motivated and excited for the next school year. A must-have for any little learner’s summer routine!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025
★★★★★ 5
Recommend
Format: Paperback
Has been a great learning book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
★★★★★ 4
Teacher approved
Format: Paperback
Great review book to help bridge the learning between Kindergarten and 1st grade. Teacher approved!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2025
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