【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
[About clocks that synchronize time via radio waves]
The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful.
🎶 New model for 2025: Small! Light! Great sound! The popular wireless earphones "COTSUBU", which have shipped over 300,000 units, now come in new colors. The sound quality is now even clearer, and a new multi-point function has been added.
🎶 Ultra-compact and ultra-lightweight: The earphones are the smallest and lightest in the series, weighing approximately 3.5g per side. They are so light that you will forget you are wearing them. They fit snugly in any ear, so the earphones are unlikely to pop out of your ears, and there is no risk of them falling out when touching the earphones when putting on or taking off a mask. In addition, the "deep fit design" allows them to be firmly attached to the ears even though they are small, achieving high sound insulation despite the lack of active noise canceling.
🎶 High-quality sound specifications supervised by audio brand final: The sound quality of wireless earphones is often not focused on the speaker part, and the sound quality is adjusted heavily by relying on the equalizer on the software, which is the cause of the sound that is easy to "listen tired" especially in the high range. In order to avoid such a phenomenon, there are many products that are unbalanced, such as overemphasizing the bass. In "COTSUBU MK2+", we pursue the acoustic characteristics of the speaker so that the sound quality is satisfactory even without the equalizer on the software, and we adopt a method of correcting only the annoying parts of the high range caused by Bluetooth with the equalizer. By renewing the internal acoustic parts, the sound transparency has been improved compared to the original COTSUBU, and you can enjoy the sound of vocals and each instrument more clearly than ever before.
🎶 New function "Touch operation disable function" installed: The earphones support touch operation, making it easier to play/pause music and answer/end calls. In addition, if you tap five times in a row, the "touch operation disable function" will be activated, and any subsequent touch operations will be disabled. In addition to preventing accidental touches of the earphones, the announcement sound and LED lighting will also be turned off at the same time, so you can use it when you want to concentrate on the content for a long time.
🎶 New function "Multi-point" installed: Supports multi-point connection that allows up to two devices to be connected to Bluetooth at the same time. You can connect two devices at the same time and operate each one seamlessly without having to switch between connections. For example, you can pair your PC and smartphone and receive calls on your smartphone while listening to music on your PC.
🎶 Package contents: COTSUBU MK2+, charging case, earpiece final TYPE E for TWS - SS/S/M size, USB-C charging cable, instruction manual, 12-month warranty, customer support *Product packaging may change without notice. Please note that depending on the time of purchase, the product may be delivered in a different product package. There is no difference in the product itself.
Weighing just 3.5g per side! Ultra-compact and ultra-lightweight "COTSUBU" is here! Completely wireless earphones that offer everything: sound, connection, and ease of use. Winner of both the Grand Prize and Gold Award at the VGP2021 Summer Special Awards, Japan's largest audio-visual awards
