Donner Rechargeable Clip on Tuner for All Instrument, Guitar Ukulele Bass Banjo Vionlin Mandolin Digital Metronome Tuner Tone Generator 3 in 1

Product Description


  1. Metronome, Digital Tuner and Tone Generator, 3 function in 1 device for acoustic and electric guitars, bass, ukulele, banjo, violin, mandolin and wind instrument.
  2. Equipped with a 120mAH rechargeable lithium battery. Ultra-low-power and auto power-off function saves energy.
  3. Designed accurately for great performance, high precise detection and sensitive vibration clip, tuning with ±1 cent accuracy.
  4. 360º rotational big clear LCD screen, multi angle view rotational clip design and excellent visibility.
  5. 30 Days Unconditional Money Back Guarantee Backed Up By Our Awesome Customer Support, you can rest assured to buy our products.


Donner DT-4 is a metronome, digital tuner, tone generator 3 in 1 multi-instrument device for guitar, bass, violin, ukulele, banjo, mandolin and wind instrument. And it is equipped with a 120mAH rechargeable lithium battery. Ultra-low-power and auto power-off function saves energy. Super large LCD display makes it easier for your eyes to tune your instruments, especially on darkened stage. Multi-color backlight display allows smooth and highly accurate tuning in noisy, dim or well-light environment. A 360 degree turn construction and adjustable padded clamp, provides best viewing angles and maximum positioning flexibility. With a broad range of 30-250 Beats Per Minute, 8 different rhythms and accents, this metro-tuner will improve your timing to adapt to different musical styles. Scientific design with solid construction ensure no break in use.Environment-friendly ABS plastic applied,no inferior material used. FCC/CE certified, ROHS compliant. Donner DT-4 3-in-1 device also provides a 30 days unconditional money back guarantee. If you have any problems, please contact us any time.


  • 3 In 1: Metronome, Digital Tuner and Tone Generator
  • Tuning Instrument: Guitar, Bass, Violin, Ukulele, Banjo, Mandolin
  • Tuning Keys: Chromatic, F, Bb, Eb
  • Detection Range: 27.5Hz (A0)-4186Hz (C8)
  • Tempo Range: 30-280bmp
  • Tuning Mod: Clip on pick up
  • Tuning Accuracy: ±1Cent
  • A4 Calibration: 430-450 Hz
  • Charging Voltage: 5V
  • Auto Power: Ultra-low-power and auto power-off
  • Power Supply: Built-in Rechargeable Lithium Battery(120mAH)
  • Net Weight: 51g


  • Do not use alcohol, gasoline and other strong cleaning chemicals to clean the LCD screen or body case.
  • Do not hit or the body case or screen beside the top. Otherwise it will lead to machine failure.
  • Do not use or keep at high temperature, heat, humility place.
  • When the battery is insuffucuent, please use the charger to charge.
  • If the product is updated and improved, without notice change.

Package included:

  • 1 X Donner DT-4 3 in 1
  • 1 X USB Cable
  • 1 X Product Manuel 
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Additional non-returnable items:
Free Gift
Downloadable software products

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at

Exchanges (if applicable)
We only replace items if they are defective or damaged.  If you need to exchange it for the same item, send us an email at


 1.Products with quality-related issues . will be responsible for shipping fees (within 12USD),and get RMA APPLICATION FORM from our Service Staff when you want to return the products of you order. Then fill the form and print it.

2.Products with no quality-related issues.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $50, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

Dropship With Us

The profit of dropshipping is high. You can earn enough pin money by yourself. As our copartner, you’ll receive the detailed instruction and free training after you join in Drop-shipping. Dedicated service representative is arranged for normal communication & order tracking. For VIP dropshipping customers, you’ll can also contact us by dedicated MSN, telephone and you’ll be notified of promotion information and training for market expansion or IT support.

1. How Drop-shipping works?

You do not have to purchase any merchandise until you have sold the item and collected the money from your customer. Then you purchase the item from us, and we ship it directly to your customer.

2.This allows you to sell a broad range of products without investment.

There is no expensive inventory or warehouse to maintain.
You do not have to spend time on packing or mailing the merchandise.
You also do not have to pack material expenses when dropshipping.
You can use our pictures and descriptions to help you in your sales.
No minimum order. Buy as little or as much as you like.> will ship your order anywhere you want with free shipping. Normally, this will need 7-15 or 20-25 business days for arriving by airmail from China. For urgent orders, you could choose to pay for Express shipment like DHL or EMS.

3.How many kinds of ID Levels for Drop-shipping Client?

For Drop-shipping Client, there are 4 kinds of ID Levels:

VIP Preliminary
VIP Medium
VIP Advanced

4.How to clarify the different ID Levels as a Drop-shipping Client?

ID Levels will be clarified by the Drop-shipping Account Amount(DAA).

ID Level Drop-shipping Account Amount(DAA)
Pre-VIP 0-4,999.99 USD
VIP Preliminary 5,000-19,999.99 USD
VIP Medium 20,000-99,999.99 USD
VIP Advanced 100,000 USD+

5.What is the benefit for different Drop-shipping Client ID Levels?

For different Drop-shipping ID Levels, they could get different discount rate.

ID Level Discount Rate
Pre-VIP 8% off
VIP Preliminary 10% off
VIP Medium 15% off
VIP Advanced 20% off

6.We guarantee none of the followings will happen when we dropship.

1) We do NOT include the prices paid for the merchandise.
2) We do NOT contact with your customers, your customers will be still loyal to you.

7.How to join Donner Drop Shipping ?

Send message to start your title with Drop shipping.
We will upgrade your account (ID Level) ,so you must have login up on
Coupon for Specified ID Level
ID Level Coupon Code
VIP Preliminary VIP-8NNY4GUTCD7P10
VIP Medium VIP-97065GPHACKD15

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