1. Introduction
Welcome to use LIVALL TWS multifunctional sports headphone, this manual will guide you how to use this product better. With the continuous improvement of the company's products, this manual will be updated from time to time. Also you can get the latest version and learn more information about headphones on LIVALL's official website (www.livall.com).
2. Packing list

3. Instructions for use
Begin to use
When opening the package to use it for the first time, please tear off the insulation film on the charging contacts, then plug in the charging cable, and charge it for 10 minutes to activate the Headphones.
(The Headphones are in transport mode after leaving the factory. In this mode, they can standby for 12 months, and need to be charged for activation before use)
Charging box function
1. Headphones off:
Due to the large contact area of the headphones keys, the headphones body has no power off function to avoid accidental contact. If you need to power off the headphones, please remove the headphones from bracket. Place them in the charging box.
2. Electric quantity display:
When the headphones are in the charging box, the charging box power is less than 20%, red light on 2S. The charging box power is more than 20%, white light on 2S.
3. Clear headphones pairing records:
When the headphones are in the charging box and the charging box is open. Long press the
button on the back for 15 seconds, the light will blink alternately with white and red for 3 to
15 seconds. 15 seconds later, the light will blink red and the headphones connection will be
cleared in 5 seconds.
Assemble/wear headphones
Headhang mode: According to the figure, place the logo outward, align the connector of the R/L logo on the headhang bracket with the connector of the R/L logo on the Headphones, push it in, and fasten it tightly. Wear the headhang Headphones on the ear, adjust the comfortable position, and then use it.

Helmet mode: 1. With the logo facing outward, align the connector of the R/L logo of the Helmet bracket with the R/L logo of the Headphones, push it in, and fasten it tightly.2. Wear the helmet that requires Headphones; 3. Tear off the Spare 3M glue of the helmet bracket, put the Headphones in the comfortable position of the ear as shown in the picture, attach the helmet bracket, press and stand for 24 hours;Due to the different ear position of each person, the installation position of helmet bracket is different. If the helmet user is changed, the position of Helmet bracket needs to be adjusted again.
Bluetooth connection
1.Opening the charging box, take out the Headphones and touch the Headphones LOGO until the indicator blinks quickly to enter the pairing mode.
2. Open the Bluetooth list of the mobile phone and find "LIVALL LTS21" to connect.
3. When connecting the remote controller, hold it close to the headphones. Press any key of the remote controller continuously until the headphones prompts connected. At this time, test whether the remote controller can adjust the volume of the headphones and check whether the connection is successful. If not, please place the headphones in the charging box, reset and try again.
4.The headphone will be automatically off in 3 mins after disconnected with the bluetooth of mobile phone
4.Technical parameters
Headphones
Battery capacity: 85mAh Speaker: Φ 16.2 mm - 20 Ω
Dustproof and waterproof: IP64
Call encoding format: CVSD 8K mSBC 16K
Microphone: 2 MIC (main MIC+ Noise reduction MIC)
Battery life for music only: 12H
Call life: 12H
Bluetooth version: Bluetooth 5.2
Charging time: 1H
Noise reduction: Call noise reduction (ENC)
Headphones status indicator LED: 1* White LED
Charging Box
Battery capacity: 800mAh/2.96Wh
Charging time: 3H
Charging port:Type-C
CMIIT ID: 2022DP0590
FCC ID:2AEKF-LTS21
Operating temperature: -10°C ~ 50°C
Battery warning
This product contains a built-in Li-ion battery, please do not expose this product to strong sunlight, fire or throw it into the fire to avoid explosion. Please dispose of the battery in accordance with local regulations and do not treat it as household waste. Unless otherwise specified in the user’s manual or quick start guide, you must not remove or replace the battery by yourself. Such operations may damage your product.
Safety rules
1. Do not remove or modify the Headphones for any reason, otherwise it may lead to Headphones failure and burnout, which are not covered by the warranty.
2.Do not get the device wet with liquid, otherwise it will cause serious damage to the device, the manufacturer will not provide warranty service for the damage caused by water ingress.
3. Do not place the device for a long time in an environment where the temperature is too high or too low (above 75 °C or below -40 °C ).
4. Please avoid using the indicator near the eyes of children or animals.
5. Do not use the device in thunderstorms, which can cause abnormal operation of the device and increase the risk of electric shock.
In order to meet the laws, regulations and other requirements related to the restriction of hazardous substances in electrical and electronic products in EU, the hazardous substances in this product are classified by parts and declared as follows:

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
Hereby, LIVALL Tech Co., Ltd. declare that the radio equipment type LTS21 Multifunction Sports Headphones is compliance with Directive 2014/53/EU.
Manufacturer name: LIVALL Tech Co., Ltd.
Manufacturer Address: Room 607, 6F, R&D Building, Tsinghua Hi-Tech Park, Nanshan District, Shenzhen, China