Purchased at Threeppy (3COINS). Used a few times, but I'm selling it because I don't use it often. (Operation confirmed) Includes the main unit, charger, glasses case, cleaning cloth, and instruction manual. == Product Description == ● These sunglasses allow you to enjoy music like background music without blocking your ears. ● They use UV99% cut lenses. ● They are water-resistant, so you can use them during exercise even if you sweat. ● Touch sensors are installed on the temples, allowing you to control music playback and calls. (You cannot skip/rewind tracks or adjust the volume; do this on the connected device.) ● You can use only one side, so you can use both sides for music playback and one side for calls. ● When the battery is low, a blue light will illuminate, and an announcement will play every 5 minutes, making it easy to know when to charge. ● A dedicated charging cable, cleaning cloth, and case are also included. == Specifications == Contents: Main unit x 1, Charging cable x 1, Cleaning cloth x 1, Case x 1, Instruction manual/Warranty x 1 Communication method: Bluetooth Ver. 5.3 Maximum communication distance: Approximately 10m (※) Supported profiles: A2DP/AVRCP/HFP Supported codecs: SBC/AAC Output sound pressure level: 70mW Impedance: 7Ω Modulation method: GFSK, Π/4-DQPSK, 8DPSK Playback frequency band: 20Hz-20kHz Battery: Lithium polymer battery 160mAh Continuous playback time: Approximately 3-4 hours (※1) Standby time: Approximately 100 hours (※) Charging time: Approximately 2 hours (※) Waterproof performance: IPX4 (※2) Charging cable connector shape: USB-A to magnetic connector Visible light transmittance: ＜Black lens＞14% ＜Light blue lens＞43% Ultraviolet transmittance: ＜Black lens＞1.0% ＜Light blue lens＞1.0% (※1) When playing at 80% volume. Varies depending on the usage environment, sound source, and volume. (※2) The main unit is water-resistant according to the international standard (IEC standard 60529) "IPX4" (protected against splashing water). It is not completely waterproof. Also, the charging cable, case, and cleaning cloth are not waterproof. (※) Connection distance and charging time are approximate. They may vary depending on usage conditions.