Nokia E3101 Essential True Wireless Earphones Black/White TWS Bluetooth Earbuds.
This is a brand new, unused, unopened in factory sealed box.
The item will be shipped ASAP via AZERPOST with tracking number after payment is received. 
Usually shipping takes 14-30 days depends to destination, but due to any situations it could be longer, please be patient. If you have any problem, please don't hesitate to message me and i will happy to solve it!
Feel free to ask me any question in English/Russian/Azerbaijani/Turkish.

Specifications

  1. Manufacturer details

    • Manufacturer

      RichGo Technology (Shenzhen) Co. Ltd.

  2. Dimensions

    • Wearing style

      True wireless earphones

    • Ear coupling

      Concha

    • Frequency response

      20 Hz to 20KHz

    • Transducer principle

      Dynamic driver

    • Transducer size

      13mm Dynamic

    • Impedance

      16?±15%

    • Max Output power(Driver)

      5mW

    • Microphone principle

      MEMS x 2

    • Microphone frequency response

      20Hz to 20K Hz

    • Microphone sensitivity

      -42±3dB

    • Microphone pick-up pattern (speech audio)

      1 mic

    • Power supply

      Built-in Lithium rechargable batteries, 3.7V.

    • Left earbud:40mAh

    • Right earbud: 40mAh

    • Charging case: 350mAh

    • Type-c charging via type-c socket of the charging case: 5V, 300mA.

    • Operating time

      5hrs (music playback via A2DP) with rechargeable batteries of the earphones*

    • 20hrs with rechargeable battery of the charging case*

    • Charging time

      Earphones: approx. 2hours

    • Charging case: approx. 2 hours

    • Ingress protection of the earduds

      IP44

    • Weight

      Left earbud: approx. 3.4g

    • Right earbud: approx. 3.4g

    • Charging case: approx. 28.8g

    • Volume Control

      Yes

  3. Electrical

    • Version

      Bluetooth 5.1

    • Transmission frequency

      2.402 GHz to 2.480 GHz

    • Profiles

      HSP,HFP,AVRCP,A2DP

    • Output power

      3mW (max)

    • Codec

      SBC

    • Effective Range

      Line of sight approx. 30ft (10m)

    • Number of phone recorded

      9

    • * Charging case that holds multiple charges for having the total play time. Battery life depends on device settings, environment, usage and many other factors.