USER MANUAL
OPEN-CASING TWS EARPHONES
LPH-TW18
Hello!
OPEN-CASING
TWS EARPHONES
LPH-TW18 Open Casing TWS Earphones
Please carefully read this Manual before using this Product for the very first time and well keep it for further reference
Dear Link Tech User,
Thank you for choosing Link Tech product. Your choice is crucial for us,which means Link Tech has added a new user. Hope that we will bring you a good expeience through our products and services. Also hope you will put forward the good advice and suggestions by oficialcustomer hotline, Whatsapp and Bip in the process of product experience,which can help Link Tech to constantly improve product and service.
If you encounter any problems inusing thisproduct, please refer to service process. Your support is our strongest power, also your recognition and evaluation are a great encouragement to Link Tech.Thank you!
Link Tech Sales Team
Notice
Excessive repetition of the action of pushing the earphone may affectthe service life and after-sales service. It is recommended to push the earphone only when it is necessary to use the earphones.
Wearing foam ear tipscan increasethe stability and airtightness, and you can choose whether to install it or not which according to your experience.
Specifications:
| Chip | JL6973D4 |
| Wearing Type | Semi-in-ear |
| Bluetooth Version | Bluetooth 5.1 |
| Audio Decoding | AAC SBC |
| Speaker Power | 5mW – 10mW |
| Battery Capacity | 35mAh / 300mAh |
| Control Method | Touch |
| Waterproof Grade | IPX4 ( earbuds ) |
| Weight Single Earbud | 3.94 grams |
| Charging Case | 29.33 grams |
| Transmission Distance | ≥10 meters |
| Bluetooth Battery Life | About 4.5 hours |
| Case Charging Times | 4 times |
| Speaker Size | 13mm TPU + LCP composite diaphragm |
| Appearance Material | ABS + PC + glass ( PET colorful process ) |
| Charging Time | About 1.5 hours for charging case/ about 50 minutes for earbuds |
Product & Accessories
Packing list: Earphones (pair), Charging case, USB-Ccharging cable, User manual
Power On & Power Off
Power On: Method one
Take out the earphones from the charging casethe earphones will boot automatically.
Power On:
Method two In the off state, press and hold the touch area of the earphones for 3 seconds.
Power Off: Method one
Put the earphones into the charging case, theearphones will shut down automatically.
Power Off:
Method two
Turn off the Bluetooth switch of mobile phone, and the earphone will automatically shut down in three minutes.
Power Off:
Method three
Turn off the Bluetooth switch of mobile phone,press the earphone for 4 seconds.
Operations & Functions
Pairing:
After being taken out from the charging case, the earphones will be paired automatically and then flash blue lights.
- Take out the earphones from the charging case and confirm that the earphones are waiting to be paired. At this time, the two earphones flash blue lights quickly
- Turn on the Bluetooth of the mobile phone, find the corresponding Bluetooth name and click toconfirm, the voice prompt “Connected” indicates that the pairing is successful.
- After the pairing is succussed, take out the earphones from the charging case and they will pair with the smartphone automatically.
Operations & Functions
Special Instructions
After being taken out from the charging case, the earphones will be paired automatically and then flash blue lights.
Operations & Functions
Reset:
When two earphones can’t be paired, please see below methods to reset.
| Steps | Indicator Light |
| Deete the corresponding bluetooth connection record from the phone | |
| Take bothearphones out of the 2- case and touch eachearphone 5 tmes,then theywiturn off. | The blue lght andthered ght witurn onat the same time for 1 second and then turn off. |
| Put both earphones into thecase, and then take them out of the case (or turn on both ear phones by holding both touch areas for 5 seconds), then the two earphones willenter the pairng state. | Blue ght and red lght flash alternately. |
| Wthin 10 seconds,the two earphones will be paired. | Blue ght flashes quickly. |
| Now you can connect the earphones with your phone | |
Charging
Earphones: Put the earphones into the charging case, the charging case will automatically chargethe earphone, and th e earphonewill display a red light when charging.
Charging Case: Use the type-c charging cable which is included in the package to charge the charging case.
Indicator Light Description
| No pairng | Waitng or pairng | Paired successfuy |
| Red and bueghts flash quickly | hendicator ght flashes blue | The ndicator ghtis off |
| Power on | Power off | ncomng call |
| Redand bueght up or 1 second | The ndicator g ht is off | Blueght flashes twce evey 3 seconds |
| Chargng | End ochargng |
| Red light is always on | he ndicator ght is off |
Charging Case:
| Charging | End of charging |
| When charging, the indicator light will keep flashing red. | The indicator light will be on red. |
| Earphones charging | Power shortage reminder |
| When put into the charging case, the charging case will turn on the white light for about 4 seconds and then turn off. | Red light flashes quickly. |
Voice Prompts
| Status | Voice prompt |
| Power on | Power on |
| Power off | Power off |
| Battery Low | Battery Low |
| Pairing | Pairing |
| Paired successfully | Connected |
| Disconnect | Disconnected |
| Adjust the volume to maximum | “Didi” |
| Adjust the volume to maximum | “Didi” |
Precautions
- Try to use the minimum volume that we can accept, high volume for a long period of time will lead to permanent damage to hearing.
- Keep the earphones and accessories out of reach of children.
Children should use the earphones under the supervision of the adults. - Don’t immerse the device in water. Avoid using this product when swimming, diving or showering.
- Don’t use this product in humid, dusty or near the magnetic field, to avoid causing internal circuit failure.
- Don’t disassemble, modify the device, or insert foreign matter into the device, which may cause equipment damage.
- Don’t put your finger or other parts into the hollow position of the charging case, to avoid physical injury.
- The shell of charging case is metal and the edge position is thin, please avoid using it at full blast.
- Don’t place the earphones in direct sunlight such as window, car dashboard.
- Avoid storing the earphones in the environment below 15°C or above 50°C.
- Avoid charging the earphones or charging case in the environment below 0°C.
Documents / Resources
 |
Link tech LPH-TW18 Open Casing TWS Earphones [pdf] User Manual LPH-TW18, LPH-TW18 Open Casing TWS Earphones, Open Casing TWS Earphones, TWS Earphones, Earphones |