Headphones Anker Space Q45, Wired & Wireless, 20-20000 Hz

Wireless range:

15 m

Signal-to-Noise Ratio (SNR): This is the ratio of signal intensity to noise intensity.

65 dB

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.

Wired & Wireless

Headphone frequency: The range of frequencies (low to high sounds) that the headphones can produce.

20 - 20000

Headphone sensitivity:

93 dB

Microphone frequency: The range of frequencies (low to high sounds) that the microphone can pick up (detect).

20 - 8000

Microphone sensitivity:

-36 dB

Continuous audio playback time: Number of hours on average for continuous play. This is dependent on the device battery capacity.

50 h

Ear coupling: Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.

Circumaural

Fast charging time:

5 min

Bluetooth profiles:

A2DP, AAC, AGHFP, HFP, LDAC, mSBC

Number of microphones:

2

Headset type: A headset is headphones combined with a microphone, or one headphone with a microphone. Headsets provide the equivalent functionality of a telephone handset but with hands-free operation. Types of headsets include single earpiece (monaural) and double earpiece.

Binaural

Wearing style: The way in which the device is worn.

Head-band

Recommended usage: What the product should be used for, and how it should be used (e.g. ambient temperature).

Calls/Music

Battery operated:

Yes

USB connectivity: The product has USB connector.

Yes

Product type: The sub-category of the product.

Headphones

USB connector: What type of USB connector is built into the device.

USB Type-C

3.5 mm connector:

Yes

Safety sheet:

Yes

Noise canceling type:

Active

Works with Apple Siri:

Yes

Transparency mode:

Yes

Continuous audio playback time (charging case/ANC on):

50 h

Continuous audio playback time (charging case/ANC off):

65 h

Noise canceling:

Yes

Microphone noise-canceling:

Yes

Technical details

Total Harmonic Distortion (THD): Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%.

3 %

Other features

Battery recharge time: Approximate time required to recharge the battery from completely empty to completely full

2 h

Battery

Battery capacity: A measure of the charge stored by the battery. Determined by the mass of active material contained in the battery.

750 mAh

Battery technology: The type of battery in the device, e.g. nickel–cadmium (NiCd).

Lithium Polymer (LiPo)

Loudspeakers

Impedance: The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.

16 Ω

Driver unit:

40 mm

Network

Bluetooth version: The type of bluetooth technology in the product e.g. Bluetooth Smart (v4.0).

5.3

Bluetooth: Bluetooth is a low-power radio technology developed to replace the cables and wires currently used to link or connect electronic devices such as personal computers, printers, and a wide variety of handheld devices including mobile phones. Because it uses radio-wave connectivity, a Bluetooth-enabled device has a constant, established connection to whatever browser it uses. This saves the user the trouble of logging on to check for emails or news updates, for example.

Yes

Packaging data

Package weight: Weight of the packaged product.

818 g

Package height: The distance from the top to the bottom of the packaging.

74 mm

Package depth: The distance from the front to the back of the packaging.

230 mm

Package width: The distance from one side of the packaging to the other.

180 mm

Packaging content

Quick start guide: Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.

Yes

Carrying case: A case in which the product can be carried.

Yes

Cables included:

AUX, USB Type-C

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.

0.292 kg

Height: The measurement of the product from head to foot or from base to top.

190 mm

Depth: The distance from the front to the back of something.

161 mm

Width: The measurement or extent of something from side to side.

88 mm

Operational conditions

Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.

-10 - 60

Performance

Battery type: Description of battery supplied with the product, such battery form factor (e.g. AA/AAA).

Built-in battery

Fast charging:

Yes

Battery voltage: The voltage (V) of the battery.

3.8 V

Charging source: How the battery is charged.

USB

Design

LED indicators:

Y

Product colour: The colour e.g. red, blue, green, black, white.

Blue