【Brand New】 This item has been kept unopened since purchase and is now being offered for sale. 【Specifications】 Driver Type: φ10mm Dynamic Built-in Microphone for Calls: High-performance MEMS microphone (Knowles), Qualcomm(R) cVc8.0 noise cancellation Battery Capacity: ・Earbud (per ear): 50mAh ・Case: 550mAh Power Input: DC5V/500mA (Max) Maximum Talk Time: 6 hours Maximum Continuous Playback Time: 10 hours (up to 50 hours with charging case) Earbud Charging Time: Approximately 1.5 hours Charging Port: USB Type-C Waterproof Performance: IPX4 equivalent Bluetooth Version: 5 Multipairing: 4 devices Multipoint: 2 devices Supported Codecs: AAC, SBC, Qualcomm(R) aptX(TM), Qualcomm(R) aptX(TM) Adaptive Supported Profiles: A2DP, AVRCP, HSP, HFP Compatible App: AVIOT SOUND XXX