Technical parameter Product components Instructions Product Model: HT28 Bluetooth version: Bluetooth 5.0 Bluetooth matching name: HT28 Impedance : 16_+15%
Driving unit: 6mm Frequency response range: 20Hz-20kHz Sensitivity : 98+3dB Rated power: 4 mW Wireless transmission distance is about 10 meters music time is about 4 hours standby time is about 100 hours charging time is about 1 hour battery capacity is 400 mAh Material: ABS Headphone size: 43.5x18.8x22mm headphones weigh: about 9g The size of the machine is 80x37.5x33.5mm The weight of the machine is about 49g Binaural wireless Ergonomic design, easy to wear Clear Sound Acoustic Technology When the product is out of the factory, the left and right earphones are paired successfully by default. When connecting to the mobile phone for the first time, follow the following steps to operate. 1. When the power is off, take out the headphones and turn them on automatically (the red and blue lights turn on alternately after the blue lights turn on). Wait for about 3 seconds before the headphones will turn on automatically. Red and blue lights flashing in the main ear and off in the auxiliary ear. 2. Open Bluetooth, search HT28, and click to connect. When the pairing is successful, you will hear "connected" and mobile phone connection. When used again, the headphones will automatically connect back to the connected cell phone after they are paired on. If you can't connect to the phone, please use Bluetooth to connect to the headset manually. In the course of use, any ear is put back to the other side of the charging bin without being affected. 3. The left and right ears are paired. Double-click PP keys to switch languages in paired search mode Incoming call
* No equipment is connected to the boot, and it will shut down automatically after 3 Answer/hang up: short press reject: long press 1 second minutes. Music Click: Play/pause Long press any ear for 2 seconds: next double click any ear twice: wake up SIRI cut Language Change: Double-click in Paired Search Mode
* In TWS, only the main ear will connect to your device, and the accessory ear will connect to the main ear.
* When used alone, both left and right headphones can be used as separate mono headphones. TWS headset pairing Pick up the earphone from the charging base, turn on both ears automatically, and enter the left and right ear matching mode automatically; the earphone is accompanied by "beep"
prompt sound.
* If the pairing is unsuccessful for a long time, please put back the left and right earphones Earphone accessories to the charging bin and pick them up. 1. One pair of headphones 2. One headphone charging box 3. Two pairs of earmuffs 4. One charging line 5. One Instruction Operation mode (charging) FCC STATEMENT 1) Headphones: When the power is low, the headphones will send voice reminders. Open the charging box, put the headset into the charging box and start charging. The red light of the charging box is on and the full light is off. 2) Charge box charging: use TPC USB charging line, access the charging box TPC USB interface. During charging, the green light of the charging box flashes and the full light is always on. When the charging box is low in power, the red light of the charging box flashes. Notes for charging: Charger with DC DC5V output voltage, USB port of PC or charger with USB port output
(Charger certified by regular manufacturer must be selected);
Reminder:
This product contains built-in rechargeable batteries, battery safety warning:
"No impact, extrusion or throwing into the fire; if severe swelling occurs, do not Continue to use; Do not put in high temperature environment; Battery is prohibited after immersion. If the battery is not replaced properly, there will be explosion danger. Only the same type or equivalent type of battery can be replaced. lithium Warning:
Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. NOTEThis device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 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. RF exposure compliance statement:
This device has been evaluated to meet the general RF exposure requirement it can be used in portable exposure condition without restriction.
* If the main and auxiliary ears are silent on one side after connection, put the left and right earphones back to the charging bin and pick them up again. After connection, the two ears will automatically return to the hand, which needs manual operation.
* The above operations need to disconnect both ears and all equipment. Matters needing attention
. Do not place this headset in a damp, dusty, sooty or vaporous place or in direct sunlight. Do not leave your headphones in the car for a long time. Otherwise, it may cause trouble. Depending on the radio condition and the location of the BLUETOOTH device, the device may not work for mobile phones. Listening at high volume with this headset may affect your hearing. For traffic safety, do not use this headset while driving or cycling. Do not use earphones in dangerous places, such as railway intersections, railway station platforms, sidewalks and construction sites, because you cannot hear environmental sounds. Do not place heavy objects or apply pressure on this headset, otherwise it may cause distortion of the headset during long-term storage. The accumulated static electricity in the body may cause a slight tingling in the ear. Wearing clothes made of natural materials can minimize the impact. Do not over-impact this headset. Use soft dry cloth to clean earphones. Do not expose headphones to water. Headphones are not waterproof. Keep in mind the following preventive measures.
- Be careful not to let headphones fall into sinks or other containers containing water.
- Do not use earphones in wet places or in bad weather, such as rain and snow.
- Do not wet the earphones. If you touch the earphone with wet hands or put it in wet clothes, it will wet the earphone, which will cause headphone failure. Because the product is magnetic, it should be far away from bank cards, floppy disks, mobile phones, computer monitors, television and other electronic devices. product If you feel unwell after using BLUETOOTH equipment, please stop using BLUETOOTH equipment immediately. If the problem still exists, please contact your local distributor. If you have any questions or questions about this headset which are not covered in this note, please contact the local office Distributor. TWS Bluetooth Headset Use instructions Operating mode (answer/call) 1) Turn on: 1. Open the charging box, take out the headphones, and the headphones will turn on automatically; 2. Press the multi-function button for 2 seconds when the power is off. After booting, the headset goes into Bluetooth matching state, and the LED lights start to flicker. 2) Turn off: In the boot state, press the multi-function key for 3 seconds or put the earphone into the charging box, and the earphone will turn off automatically. 3) Answer the phone: When calling, press the multi-
function button on the earphone. 4) Reject calls: When calling, press the multi-function key for 1 second. 5)End the call: In the call, press the multi-function key. Operational Mode (Playing Music) 1) Play music: Press the multi-function key or operate the player on the mobile phone (some mobile phones will automatically start the music player when connected to Bluetooth stereo). 2) Stop music: when playing music, press the multi-
function key or operate the player on the mobile phone. 3) Next song: When playing music, press any multi-
function key for 2 seconds. 4) SIRI: When playing music, double-click the multi-
function key of any ear.
* If you use headphones to watch videos, the audio and video may be slightly out of sync.