Wireless Bluetooth IPX4 Water and Dust Multipoint Bass Boost Up to 34 Hours Playback Black Audio-Technica ATH-AC5TW Open-Ear Earphones, 5.4,

This product is certified with the Japanese Technical Standards Conformity Mark (Frequency band: 2.4GHz). It transmits sound via air conduction, without blocking the ears: you can hear surrounding sounds without blocking your ears, so you can use it with peace of mind. Because the earphones are not inserted into the ear canal, your ears are less likely to hurt even after prolonged use, and there is no need to worry about your ear canal getting sweaty. Also, when making calls, your voice will not sound muffled, so you can speak naturally as usual. Large oval drivers reproduce rich sound: These headphones utilize large 17x12mm drivers that maximize the limited acoustic space within the housing. Furthermore, by placing an acoustic space and acoustic duct behind the driver to control airflow, ideal driver movement is achieved, resulting in rich sound reproduction. Equipped with Dual Bass Enhancement Technology: This device features "Dual Bass Enhancement Technology," which combines a digital processing algorithm for reinforcing the low-frequency range with a dynamic EQ algorithm that maintains bass volume even at low volumes. Through unique sound tuning, you can enjoy a balanced and full-bodied sound. Long battery life with up to 13 hours of continuous playback, perfect for all-day use: Enjoy music, videos, and social media without worrying about running out of battery, as the earbuds alone offer up to 13 hours of continuous playback*. With the charging case, you can enjoy up to 34 hours of continuous playback. Supports multipoint connectivity, allowing simultaneous connection to two Bluetooth devices: You can connect your everyday smartphone and your school or work PC/tablet at the same time, eliminating the hassle of switching between Bluetooth-connected devices. For example, if you're enjoying live video on your tablet and receive a call on your smartphone, you can respond instantly without having to reconnect.