Instructions for Dongguan Pure Audio Technology models including: 4U, 2A378-4U, 2A3784U, 4U Series Bone Conduction Bluetooth Headphones, Bone Conduction Bluetooth Headphones
Dongguan Pure Audio Technology Co., Ltd. 4U Bone conduction Bluetooth headset 2A378-4U 2A3784U 4u
File Info : application/pdf, 12 Pages, 1.99MB
DocumentDocument4U series
B0NE CONDUCTION BLUETOOTH HEADPHONES
PRODUCT INSTRUCTIONS
6
1 4 5
2
3
1. 2. 3.Type-C 4. 5.MIC 6.
/
2s 2s
power on power off
pairing
4U
3 connected disconnected
3
power off
/
1
-
-
2
-
-
/
2
-
du du
3
-
du du du
3/
-
du du
-
10 battery low
-
-
-
-
Type-C ,
10
power off
10 3
du du du du
4U
5.0
10
100 Hz~20 KHz
8
2.402-2.480 GHz
Ø14.0mm
-40 dB±2 dB
27.2g
150 mAh
2C
6
1
+
5V / 1A
IP55
HFP 1. 7,HSP 1. 2, A2DP 1. 3, AVRCP 1. 6
CMIIT ID
urbanfun@pureaudio-tech.com
USB 5V
USBUSB
6
1 4 5
2
3
1. 2. 3.Type-C 4. 5.MIC 6.
/
2s 2s
power on power off
pairing
4U
3 connected disconnected
3
power off
/
1
-
-
2
-
-
/
2
-
du du
3
-
du du du
3/
-
du du
-
10 battery low
-
-
-
-
Type-C ,
10
power off
10 3
du du du du
4U
5.0
10
100 Hz~20 KHz
8
2.402-2.480 GHz
Ø 14.0mm
-40 dB±2 dB
27.2g
150 mAh
2C
6
1
+
5V / 1A
IP55
HFP 1. 7,HSP 1. 2, A2DP 1. 3, AVRCP 1. 6
CMIIT ID
NCC
NCC
Product Structure
6
1
4 5
2
3
1.Status Indicator
2.Off Button
3.Type-C Charging Port
4.Touch Area (right ear)
5.MIC Location
6.Light Perception (right ear)
Note: All kinds of pictures in this manual are schematic diagrams,which may deviate from the actual objects. Please refer to the actual objects.
Features
Features
Operate
Light Flashes
Beep
General settings
Pairing
Call
Turn On Press & hold 2 sec seconds on Power button Blinks Green
Turn Off Press & hold 2 sec seconds on Power button
Blinks Red
Waiting for connection Connection
Success
Disconnect
Answer/ end call
Earbuds will automatically enter Bluetooth Pairing. Select "UBF 4U" in device settings to connect
Turn off bluetooth from any previously connected device.
Single tap on right bud
Slow flashing red and green lights Green light flashes once every 3 seconds
Blinks Green
-
Refuse call Press & hold 2 sec seconds on right bud
-
power on power off
pairing connected disconnected
-
Play
Double tap on right bud
-
du du
Pause
Double tap on right bud
-
du du
Music
Play Next
Triple tap on right bud
-
Volume up/ down
Press & hold 3 seconds on right bud and say "volume up/volume down".
-
way1 or 2
Adjustment by phone
-
du du du -
Battery
Low battery Charging
3.3v low battery prompt, 30 seconds prompt once.
After plugging in the Type-C charging cable, the headset will shut down.
The red light turns on once every 10 seconds
Solid Red
battery low -
Full charged
-
Solid Green
-
Smart Wear Detection Restore settings
Auto shutdown if not work for more than 10 minutes
After turning on the phone, long press and touch for 10 seconds to restore setting
(can not be linked to the phone Bluetooth).
Blinks Red -
power off du du du du
Call Voice Assistant
Press & hold 3 seconds on right bud
-
du du
Headset multipoint connection
This headset supports two devices (devices that have been connected to the headset) and when the device that is playing is paused, it will automatically switch to the other device that is playing.
Product Specifications
Model No : 4U
Bluetooth Version : 5.0 Channel Stereo
Wire Range : 10 Meters / 33 Feet
Frequency Response : 100 Hz~20 KHz
Bluetooth Response : 2.402-2.480 GHz
Impedance : 8
Speaker Driver : Ø14.0mm BCT
Microphone Sensitivity : -40 dB±2 dB
Weight : 28.5g
Battery Capacity : 150 mAh
Battery : 2C Fast charge lithium battery
Play Time : About 6 Hours
Charging Time : About 1 Hour
Button Style : Button+Smart Touch
Wearable Detection : Support
Electrical Specifications : 5V / 1A
Waterproof Level : IP55
Compatible Profiles : HFP 1. 7,HSP 1. 2, A2DP 1. 3, AVRCP 1. 6
CMIIT ID :
FCC Warning Statement
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the eguipment. This eguipment 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 residentia installation. This equlpment generates uses and can radiate radio frequency enengy 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 perticular 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 eguipment and receiver. Connect the eauipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radiotv technician for help. This 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. The device has been evaluated to meet general RF exposure requirement.