User's Manual

12 Trademarks and legal statements 11 Precautions

Instructions for Product Use

1. To avoid damage caused by falling, do not throw or cast the product

2. Do not disassemble, repair or modify the product. Avoid falling or being under heavy pressure.

3. Do not use or store the product in high temperature. Do not expose the product to rain or humid environment.

Please do not store the product together with ﬂammable, explosive and corrosive chemicals.

4. The product contains lithium battery, please do not put it in ﬁre, so as not to cause danger! When discarding

the product, please abide by local laws and regulations.

5. Do not touch the diaphragms on the left and right sides of the speaker

Instructions for Users

1. In order to avoid hearing damage, please use medium or low volume when playing for a long time.

2. In order to prolong the service life of the battery, please charge it in time after each use. Do not wait until the

battery runs out before recharging. Do not store the speaker for a long time under low battery.

3. When the product cannot be turned on, please connect it to the charger to charge for 10 minutes.

4. Do not clean the product when charging. This product should be powered o before cleaning.

5. To avoid damage to the product, please use the charger with an output voltage/current of 5 V/3 A

Maintenance

1. The normal working temperature of the speaker should be-10 ℃–50 ℃. Temperature extremes will accelerate

the aging of electric components. Pay special attention to cooling and maintaining air circulation in summer.

2. Charge regularly. If the product is not used for a long time, especially in humid and high temperature seasons,

it is best to charge it for half an hour every day. Prevent the internal coil, the speaker voice coil and the

transformer from being damaged by humidity.

3. Regularly wipe the speaker surface with clean, wet and soft cotton cloth; When not in use, cover it with a dust

cover or cloth to prevent dust from entering the speaker.

Ninebot and Ninebot Electric are registered trademarks or trademarks of Ninebot (Beijing) Tech Co., Ltd.;

Ninebot is a registered trademark of Ninebot (Tianjin) Tech Co., Ltd.; Segway and the Rider symbol are

registered trademarks or trademarks of Segway Company. Xiaomi and MIJIA are registered trademarks or

trademarks of Xiaomi Technology Co., Ltd.; Lamborghini is a registered trademark of Automobili Lamborghini

Company; The respective owners reserve the rights of their trademarks referred to in this manual.

We have attempted to include description and instructions for all the functions of the Ninebot Engine Speaker at

the time of printing. However, due to constant improvement of product features and changes of design, your

speaker may dier slightly from the one shown in this document.

In addition to the BT2928 Ninebot Engine Speaker, Ninebot also has a number of series and models with

dierent functions. Some of the features mentioned in this Manual may not be available on your other Ninebot

products. Due to the product update, the products listed in this Manual may dier from the products you

actually purchased in terms of color, appearance, etc. Please refer to the actual products.