Thank you for viewing. The E9 is a true wireless earphone with 5 hours of playback time and waterproof functionality. - Model: E9 - Wireless: Yes - Bluetooth Version: 5.0 - Playback Time: 5 hours - Playback Time with Charging Case: 15 hours - Codec: SBC/AAC - Features: Waterproof [Product Condition] Although unopened, This is a used item, so we cannot guarantee any very minor damage not mentioned. Please purchase with the understanding that this is the case. *Please check the images for detailed condition. Stored in a room without smoking or pets. [Regarding Shipping] We will ship via free, anonymous delivery. [Notes] Please refrain from purchasing if you are overly sensitive. We cannot accept claims after purchase. Please purchase only if you understand the above. [Other] Managed in an environment without smokers or pets. Product photos are taken under white lighting, regardless of day or night.