Nokia Essential True Wireless Earphones E3103

Specifications

1. Manufacturer details

   • Manufacturer

     RichGo Technology (Shenzhen) Co. Ltd.

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2. General

   • Wearing style:

     True Wireless Earphones

   • Ear coupling:

     Concha

   • Frequency response:

     20 Hz to 20KHz

   • Transducer principle:

     Dynamic driver

   • Transducer size:

     13mm

   • Sound pressure level(SPL):

     102dB±3dB

   • Impedance:

     32Ω

   • Microphone principle:

     MEMS x 2

   • Ingress protection of the earduds:

     IPX4

   • Weight:

     Left earbud? approx. 3.3g

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     Right earbud?approx. 3.3g

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     Charging case: approx. 31.4g

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3. Bluetooth

   • Version:

     Bluetooth 5.1

   • Transmission frequency:

     2.402 GHz to 2.480 GHz

   • Profiles:

     HSP, HFP, AVRCP, A2DP

   • Codec:

     SBC

   • Effective Range:

     Line of sight approx. 30ft (10m)

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4. Power

   • Power supply:

     Built-in Lithium rechargable batteries, 3.7V

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     Left earbud: 37mAh

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     Right earbud: 37mAh

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     Charging case: 320mAh

   • Operating time:

     Up to 7hrs (music playback via A2DPwith 70% of the volume) with rechargeable batteries of the earphones*

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     25 hrs with rechargeable battery of the charging case*

   • Charging time:

     Earphones: approx. 2 hours

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     Charging case: approx. 2 hours

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