audio technica / ATHCKR300BTGY

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The audio technica ATH-CKR300BT is a standard model of wireless earphones that are easy to use every day, such as for commuting to work or school. It delivers powerful bass and natural mid-to-high ranges, allowing you to easily enjoy high-quality sound with excellent cost performance.

■ Equipped with a newly designed 9.8mm diameter dynamic driver that brings out the original sound
・In order to achieve both high sound quality and excellent wearability in a small body, the linearity (※ 1) is improved with a top-mounted PCB. It reproduces sound without any noise.
(※ 1) Linearity (straightness): When the input signal is converted and amplified into sound, the output signal is faithfully reproduced according to a certain ratio.

■ Up to approximately 8 hours (※ 2) of continuous playback on a single charge
・ Up to approximately 8 hours of music playback is possible with approximately 2 hours of charging. You can use it every day from commuting to school or school to home without worrying about battery life.
(※ 2) Varies depending on usage conditions.

■ With in-line controller
・ You can easily turn the power on/off, play/pause music, skip forward/back, make calls, and adjust the volume right next to your ear.

■ Smartphone voice recognition function
・ You can access Siri/Google Assistant using the operation button. Just by calling through the microphone, the headphones will support your daily activities, such as reading out messages and notifications, and giving route guidance.

■Closed type that is less likely to leak sound
- Reduces the annoying sound leakage when listening on trains and buses while commuting to work or school.

■Comfortable fit
- The compact body condenses high performance, so even people with small ears can enjoy a comfortable fit.

■Glossy design and color variations
- Available in six colors with a soft texture based on grayish tones that are easy to match with any style. The mirror-like glossy housing creates a look around the ears.

■Auto power off function
- If the power is on and there is no connection to the device for 5 minutes, the power will automatically turn off. In addition, if the connection to the device is lost and there is a state of waiting for connection for 30 minutes, the power will automatically turn off. This prevents unnecessary battery consumption.

◇Headphone section
■Type: Dynamic type
■Driver diameter: 9.8mm
■Output sound pressure level: 102dB/mW
■Playback frequency band: 5-30,000Hz
■Impedance: 16Ω

◇Microphone section
■Type: MEMS type
■Directional characteristics: Omnidirectional
■Sensitivity: -42dB (1V/Pa, at1kHz)
■Frequency band: 50-4,000Hz

◇Communication specifications
■Communication method: Compliant with Bluetooth standard Ver.5.0
■Maximum communication distance: Within 10m in a clear line of sight
■Frequency band used: 2.4GHz band (2.402-2.480GHz)
■Modulation method: FHSS
■Supported Bluetooth profiles: A2DP, AVRCP, HFP, HSP
■Supported codecs: AAC, SBC
■Supported content protection: SCMS-T method
■Transmission band: 20-20,000Hz

◇Other
■Power supply: DC3.7V lithium polymer battery (built-in)
■Charging time: Approximately 2 hours
■Usable time: Continuous communication (when playing music): Up to approximately 8 hours
■Weight: Approximately 13.5g
■Waterproof specification: IPX2
■Usage temperature range: 5-40℃
■Accessories: 30cm USB charging cable (USB Type-A/USB Type-C), earpieces (XS, S, M, L), pouch