【Brand New, Unopened】Limited Edition Audio-Technica audio-technica SOLID BASS ATH-CKS5TW LTD Wireless Headphones Wireless Earphones A valuable, unopened LTD (Limited) model! A limited edition collaboration model with painter "baanai," who amazes the world with unparalleled artwork that touches the heartstrings. The box is still sealed with tape and has not been opened. Therefore, the operation has not been confirmed. This item is sold as-is, and returns are not accepted. Please consider this before purchasing. SOLID BASS sound that allows you to listen to overwhelming deep bass with completely wireless functionality. Seamless auto power ON/OFF Approximately 15 hours of continuous playback with the headphones alone, and up to approximately 45 hours with the charging case. A φ10mm large driver with a two-layer diaphragm provides thick bass and clear mid-high frequencies. Headphone Section Type: Dynamic Driver: φ10mm Output Sound Pressure Level: 110dB/mW Frequency Response: 5～40,000Hz Impedance: 16Ω Microphone Section Type: MEMS Directivity: Omnidirectional Sensitivity: -40dB (1V/Pa, at 1kHz) Frequency Band: 50～4,000Hz Communication System: Bluetooth Standard Ver. 5.0 compliant Maximum Communication Distance: Within 10m in a clear line of sight Operating Frequency Band: 2.4GHz band (2.402GHz～2.480GHz) Modulation Method: FHSS Supported Bluetooth Profiles: A2DP, AVRCP, HFP, HSP Supported Codecs: Qualcomm aptX audio, AAC, SBC Supported Content Protection: SCMS-T method Transmission Band: 20～20,000Hz Power Supply ・Headphones: DC3.7V Lithium-ion battery (built-in) ・Charging Case: DC3.7V Lithium polymer battery (built-in) Charging Time ・Headphones: Approximately 2 hours *1 ・Charging Case: Approximately 3.5 hours *1 ・Continuous Communication (during music playback): Approximately 15 hours (headphones) *1 ・Up to approximately 45 hours (when using the charging case) *1 Weight ・Headphones: Approximately 8g (L side), Approximately 8g (R side) ・Charging Case: Approximately 60g Water Resistance: IPX2 (headphones only) *2 Accessories: USB charging cable (30cm/USB Type-A/USB Type-C), Earpieces (XS, S, M, L), Silicone rings