Name: JBL E40BT
Brand: JBL
SKU: 796479
Rating: 83 (21 reviews)

Manual of product E40BT

First page image of the manual for E40BT

User Manual

22 pages

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8 10

Editorial note

The JBL E40BT headphones stand out for their exceptional sound quality, thanks to a frequency range of 20 to 22,000 Hz and a sensitivity of 107 dB. This ensures an immersive and powerful listening experience, ideal for music lovers. Their 16-hour battery life allows for extended use, although this may not be sufficient for heavy users who prefer uninterrupted listening time. The foldable design of the JBL E40BT is a major asset, making them easy to store and transport. However, their weight of 205 g may be considered relatively heavy for headphones, which could cause discomfort during prolonged use. Regarding connectivity, Bluetooth 3.0+HS provides a convenient wireless connection, but it may have limitations compared to newer versions, sometimes leading to connectivity issues. In terms of value for money, the JBL E40BT offers good audio features and a functional design, although improvements could be made to the battery technology, which uses less efficient nickel-metal hydride (NiMH) cells compared to modern lithium-ion batteries. Overall, the JBL E40BT is a solid choice for those looking for headphones with good sound quality and a practical design, while keeping in mind some compromises regarding weight and connectivity.

Score details

User experience

The user experience is generally positive, thanks to an in-ear design that offers listening comfort, even for long periods.

Performance

The audio performance is excellent, with a frequency range of 20 to 22,000 Hz and a sensitivity of 107 dB, ensuring immersive and powerful sound quality.

Battery life

Although the 16-hour battery life is satisfactory for daily use, it may not be enough for heavy users wanting extended listening without recharging.

Design

The foldable design makes storage and transport easy, but the weight of 205 g may be considered relatively heavy for headphones.

connectivity

The Bluetooth 3.0+HS connectivity is convenient, but it may lead to connectivity issues compared to newer versions.

Value for money

The value for money is good, considering the audio features and design, but some battery technologies could be improved.

Advantages

Clear and powerful sound

Battery life up to 16 hours

Wireless Bluetooth connectivity

Foldable design for transport

Lightweight and ergonomic comfort

Disadvantages

Weight of 205 g, potentially uncomfortable.

Bluetooth 3.0 less efficient than recent versions.

16 hours of battery life may be insufficient.

In-ear coupling not suitable for everyone.

NiMH battery less durable than lithium-ion.

Technical Specifications E40BT

General Information

Model

E40BT
Brand

JBL
Category

Audio
Type

Headphone
SKU

796479
MPN

796479

Headphones/Earphones

Headphone frequency

20 - 22000 Hz
Headset sensitivity

107 dB
Impedance

32 Ohm
Reading unit

40 mm
Maximum input power

30 mW
Ear coupling

Circum-aural

Weight and dimensions

Weight

205 g

Battery

Communication time

24 h
Battery technology

Lithium Polymer (LiPo)
Battery capacity

610 mAh
Streaming audio playback

16 h

Connectivity

Bluetooth model

3.0+HS
Bluetooth Profiles

A2DP
Connectivity technology

Wireless
Bluetooth

Yes

Representation / realization

Foldable

Yes
Product type

Headset
Product color

Purple
Type of headset

Binaural
Portable headset style

Headband
Recommended use

Calls/Music

Microphone

Microphone type

Integrated

Frequently Asked Questions

At what volume level can listening be harmful?

A volume of 80 decibels can cause hearing damage. If the sound exceeds 120 decibels, injuries can occur immediately. The risk of hearing damage varies depending on the frequency and duration of listening.

Is it possible to make hands-free calls with my headphones?

Recent headphones generally come with a built-in microphone that allows for making calls.

What is meant by noise cancellation?

Noise cancellation helps to reduce surrounding noise.

What is Bluetooth technology?

Bluetooth allows for wireless data transmission between different electronic devices via radio waves. The exchange range can reach up to ten meters in most cases.

What is the weight of the JBL E40BT?

The weight of the JBL E40BT is 205 grams.

How can I connect my JBL E40BT headphones to a device?

To connect your JBL E40BT headphones, turn on Bluetooth on your device, then press and hold the power button on the headphones until the LED light flashes blue. Then, select the headphones in your device's Bluetooth settings to finalize the connection.

How do I adjust the volume on my JBL E40BT headphones?

To adjust the volume on your JBL E40BT headphones, locate the volume control buttons on the right ear cup. Press the "+" button to increase the volume and the "-" button to decrease it.

Can I use my JBL E40BT headphones while they are charging?

Yes, you can use your JBL E40BT headphones while they are charging. Just plug the provided charging cable into the headphones and a power source, and the headphones will continue to function while charging.

How do I answer calls with my JBL E40BT headphones?

When you receive a call while using your JBL E40BT headphones, press once on the multifunction button located on the right ear cup to answer. You can then speak into the built-in microphone to converse. To end the call, press the same button again.

How do I fold my JBL E40BT headphones for storage or travel?

To fold your JBL E40BT headphones for storage or travel, start by turning the headphones inward. Then, fold them at the hinges located above the ear cups to bring them closer together and form a compact shape.

Are the JBL E40BT headphones foldable?

Yes, the JBL E40BT headphones have a foldable design, making them easy to store and transport.

What is the talk time of the JBL E40BT headphones?

The JBL E40BT offers up to 24 hours of talk time, allowing users to chat for long periods without worrying about the battery.

What battery technology is used in the JBL E40BT headphones?

The JBL E40BT uses a lithium polymer (LiPo) battery. LiPo batteries are known for their high energy density and longer lifespan compared to traditional lithium-ion batteries.

What is the sensitivity of the JBL E40BT headphones?

The sensitivity of the JBL E40BT headphones is 107 dB, which means it can produce powerful and clear sound even at lower volume levels.

What is the continuous audio playback time of the JBL E40BT headphones?

The JBL E40BT offers a continuous audio playback time of 16 hours, allowing users to listen to their favorite music without needing to recharge the headphones.