【Product Name】 audio-technica ATH-CKS50TW Wireless Earphones (SOLID BASS Series) 《Overwhelming deep bass! Bringing the energy of music directly to you》 I am selling audio-technica's "SOLID BASS" series fully wireless earphones! You can experience "extreme deep bass" that combines depth and volume with clear mid-high frequencies. 【Product Condition: Please Read Carefully】 This is a used item. Appearance There are some minor scratches and scuffs from use. Deterioration Some parts of the housing may have begun to show slight hydrolysis (stickiness) typical of used items. This is within a range that does not affect use, but please be aware of this. Battery Originally, the earphones alone can play for a maximum of about 20 hours (when NC is OFF), but please understand that there may be some deterioration with use. Even so, it is designed to last much longer than typical wireless earphones. Operation There are no problems with basic functions such as connecting to a smartphone, noise canceling, sound output, and charging. 【Main Specs and Features】 Battery Earphones only: Approximately 20 hours (when NC is OFF) Amazing long battery life! Driver 9mm SOLID BASS HD TWS Driver Powerful deep bass and clear mid-high frequencies Functions Noise Canceling Allows you to concentrate in noisy places Connection Bluetooth 5.2 / aptX, AAC, SBC Stable connection and support for high-quality audio codecs Other Multi-point Low latency mode equipped 【Accessories】 Outer box, charging case, ear tips (S/M/L/LL), charging A to C USB cable, instruction manual (※ Ear tips are almost unused as I used aftermarket ones, and the USB cable is unused) 【Notes for Purchase】 Due to work, items will only be shipped on weekends. Please be aware of this if you are in a hurry. 【To those considering purchasing】 Although it is a used item, it has a used feel, but you can try the convenient features such as noise canceling and multi-point, and audio-technica's signature deep bass sound at an affordable price. Instant purchase OK! We are looking forward to your purchase if you understand the condition and shipping time. If you have any questions, please feel free to comment.