Brand: OnePlus
Category: Audio
  • 1: Material: Metal,PC
  • 2: Type: In-Ear
  • 3: Charging Time.: 2h
  • 4: Sensitivity: 97dB
  • 5: Talk time: 10.5h

Our Rating

The overall rating is based on review by our experts

  • Design 9 / 10
  • Features 8 / 10
  • Connectivity 9 / 10
  • Performance 8 / 10

ONEPLUS BT31B Bluetooth Sports Earphone

At the launch of OnePlus 6, OnePlus also introduced a Bluetooth headset “BT31B”, which is also the first Bluetooth headset from OnePlus.

The exterior of the OnePlus BT31B features a unique streamlined “horn” design that symbolizes the power of sound. The personality is vivid and dynamic; the contour of the surface is from inside to outside, which is very fluid; the chamfering surface of the CD pattern process is more flexible. Titanium alloy skeleton + liquid silicone surface, make the lanyard tough and durable, and affect the skin; the body is light and comfortable to wear.

Magnetic adsorption has a switching function, which is convenient for anti-lost and energy saving. ONEPLUS BT31B supports OnePlus Dash flash charging, 8 hours long battery life at full power, and 10 hours of continuous listening for 5 hours. The ONEPLUS BT31B also supports automatic voice announcement and automatic answering. Life waterproof design makes outdoor sports more assured.

The two in-ear earphones are connected by a cable, so they are not completely wireless. When the two earphones are not in use, they can be attracted together by the magnet, and they will automatically close when they are closed to save power.

The headset supports aptX high-quality audio and is equipped with an Energy Tubes 9.2 mm drive unit that directs sound to the eardrum. The earphones are made of non-metallic minerals and silicone, and the addition of headphones adds a clearer and richer sound.


Product Details

Features ● No winding, no entanglement, only you and music close
● Plug into the ear, music and you easily connect. When absorbed it, power off, you put it on, it plays again. Can also voice prompt
● Supports Dash flash charging, charging for 10mins, you can listen to songs for 5 hours. You can also check the power on your phone so that you can charge it in time
● Perfectly compatible with OnePlus 6
Specification Brand: ONEPLUS
Function: Answering Phone,Bluetooth,Microphone,Noise Cancelling,Song Switching,Sweatproof
Material: Metal,PC
Model: BT31B
Type: In-Ear
Wearing type: Neckband

Application: Running,Sport,Working
Charging Time.: 2h
Compatible with: iPhone,Mobile phone
Connecting interface: Type-C
Connectivity: Wireless
Driver unit: 9.2mm
Frequency response: 20-20000Hz
Impedance: 32ohms
Music Time: 8h
Sensitivity: 97dB
Standby time: 255h
Talk time: 10.5h

Bluetooth: Yes
Bluetooth chip: CSR8645
Bluetooth distance: W/O obstacles 10m
Bluetooth mode: Hands free,Headset
Bluetooth protocol: A2DP,AVRCP,HFP,HSP
Bluetooth Version: V4.1

Battery Capacity(mAh): 115mAh Li-ion Battery
Battery Type: Built-in

Package size (L x W x H): 15.00 x 8.00 x 5.00 cm / 5.91 x 3.15 x 1.97 inches
Package weight: 0.2000 kg
Product size (L x W x H): 30.00 x 3.00 x 2.00 cm / 11.81 x 1.18 x 0.79 inches
Product weight: 0.0160 kg


  • Be the first to add a Review

    Please post a user review only if you have / had this product.

Disclaimer Note

Ratings are based on objective reviews from our users.