Nokia Essential True Wireless Earphones E3102

Specifications

1. Manufacturer details

   • Manufacturer

     RichGo Technology (Shenzhen) Co. Ltd.

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2. General

   • Wearing style

     True Wireless Earphones

   • Ear coupling

     Ear canal

   • Frequency response

     20 Hz to 20KHz

   • Transducer principle

     Dynamic driver

   • Transducer size

     Φ13mm Dynamic

   • Sound pressure level(SPL)

     94dB±3dB

   • THD (1 kHz, 94dB SPL)

     <5%

   • Impedance

     16Ω±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 rechargeable batteries, 3.7V

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     Left earbud: 40mAh

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     Right earbud: 40mAh

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     Charging case: 350mAh

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

   • Operating time

     *5hrs of music playback via A2DP using the rechargeable earphones and 20hrs in total using the rechargeable charging case.

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     The Battery life depends on device settings, environment, usage and many other factors.

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   • Charging time

     Earphones: approx. 2hours

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     Charging case: approx. 2 hours

   • Temperature range

     Operation: -10 to +50°C

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     Storage: -10 to +50°C

   • Relative humidity

     Operation: 10% to 85%. Non condensing

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     Storage: 10% to 85%. Non condensing

   • Ingress protection of the earduds

     IP44

   • Weight

     Left earbud: approx. 3.6g

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     Right earbud: approx. 3.6g

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     Charging case: approx. 30g

   • Volume control

     Yes

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3. Electrical

   • Version

     Bluetooth 5.1

   • Transmission frequency

     2.402 GHz to 2.480 GHz

   • Modulation

     GFSK, π/4 DQPSK.8DPSK

   • Profiles

     HSP, HFP, AVRCP, A2DP

   • Output power

     3mW (max)

   • Codec

     SBC

   • Effective range

     Line of sight approx. 30ft (10m)

   • Number of storable Bluetooth devices

     Nine devices