The ATH-CKR7TW True Wireless In-Ear Headphones from Audio-Technica provide you with wireless audio entertainment without any cables, not even between each earbud. Even though they are extremely compact, Audio-Technica has managed to engineer a host of technological capabilities inside, designed to deliver clear, high-fidelity sound with deep, rich bass. They also include the AKM AK4375 DAC and headphone amplifier to help ensure clean sound reproduction via a wireless Bluetooth signal.

To further help with audio quality via Bluetooth, these earbuds support the AAC and aptX codecs. They also incorporate a built-in microphone and button control for managing audio playback and hands-free calls. Designed for comfortable extended use, these True Wireless earbuds give you up to 6 hours of continuous playback and included four different sized pairs of eartips.

High-Fidelity Audio Technology:

The engineers at Audio-Technica have incorporated a host of components and technologies that are designed to provide exceptional audio quality in a compact form factor.
11mm drivers and a diamond-like carbon-coated diaphragm is joined by pure iron yokes to help give accurate hi-fi audio playback
Dual-layer isolation structures separate the electronics from the acoustic space, which is meant to give optimized phase and transient response
Brass stabilizers are designed to reduce resonance and provide for linear diaphragm movement
Stainless steel acoustic mesh resistors work to help further improve overall audio quality

Button Control:

Built-in button control gives you hands-free call, music, and volume adjustment on your Bluetooth-compatible mobile device.

Charging Case:

The True Wireless earbuds come with their own charging case for up to 15 total hours of continuous playback before any charging cables need to be plugged in. When the earbuds need to be recharged, simply place them in the case.
The earbuds deliver up to 6 hours on a full charge, and the built-in battery inside the case provides up to 9 more hours of power on a full charge. The earbuds and charging case itself can be recharged within approximately 2 hours.

Audio-Technica Consumer ATH-CKR7TW Specs

Headphone
Driver Size	0.43" / 11 mm
Diaphragm Coating	Carbon
Active Noise Cancellation	No
Design	In-Ear (Intra-aural)

General
Frequency Response	5 Hz to 45 kHz (Wireless)
Sensitivity	100 dB at 100 mW
Impedance	16 Ohms
Noise Attenuation	None
Controls/Microphone Location	Earpiece
Storage Capacity	None

Microphone
Number of Mics	1
Type	Condenser
Pickup Pattern	Omni-Directional
Frequency Response	100 Hz to 10 kHz
Sensitivity	-38 dB at 1 kHz / 1 V

Wireless Connectivity
Supported Audio Codecs	AAC, SBC, aptX
Bluetooth Profiles	A2DP AVRCP HFP HSP
Bluetooth Version	5.0
Wireless Range	33' / 10.1 m
Bluetooth Transmitter Power	3.2 mW
NFC	No

Battery
Battery Chemistry (Headphones: )	Lithium-Ion Polymer (LiPo)
Battery Chemistry (Battery case )	DC 3.7V lithium polymer battery
Runtime	Approximately 6 hours continuous use; 9 additional hours with charging case (15 hours total)
Recharge Time	2 Hours
DC Input Power	3.7 VDC

Charging Case
Additional Runtime	9 Hours
Charging Time	5 hours
Charging Port	Micro-USB
Weight	2.6 oz / 74 g

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In the Box:

1 x Audio-Technica Consumer ATH-CKR7TW True Wireless In-Ear Headphones
1 x Charging Case
1 x Micro-USB Type-B Charging Cable (1')
1 x Pair of Extra Small Eartips
1 x Pair of Small Eartips
1 x Pair of Medium Eartips
1 x Pair of Large Eartips
Limited 1-Year Warranty

Audio-Technica Consumer True Wireless In-Ear Headphones ATH-CKR7TW