Latest Bluetooth Version: Equipped with Bluetooth V5.4, ensuring a stable and fast connection for seamless audio streaming and calls Comprehensive Bluetooth Protocols: Supports HFP, SMP, A2DP, AVRCP, SPP, PBAP, and SDP, providing wide compatibility and enhanced functionality Extended Transmission Range: Offers a transmission distance of up to 10 meters, allowing for greater freedom of movement. Long Battery Life: With a 300mAh charging case and 35mAh battery capacity per earbud, enjoy up to 5 hours of music playback and 4 hours of talk time on a single charge Quick Charging: The earbuds charge fully in approximately 1.5 hours using a Type-C interface with DC5V 500mA input Superior Sound Quality: Features φ14mm 16Ω/20mW speakers for high-fidelity audio, delivering clear and powerful sound Water-Resistant: Rated IPX4 for water resistance, making these earbuds suitable for use during workouts and in light rain Specifications: Bluetooth version: Bluetooth V5.4 Bluetooth protocols: HFP, SMP, A2DP, AVRCP, SPP, PBAP, SDP Transmission distance: Straight line ≥ 10 meters Battery capacity (charging case): 300mAh Battery capacity (single earphone): 35mAh Music playback time: about 5 hours Talk time: about 4 hours Charging time: about 1.5 hours Charging interface: Type-C, DC5V 500mA Speaker: φ14mm 16Ω/20mW Waterproof level: IPX4 Package included: 1 x Pair of Bluetooth Earphones 1 x Charging Case 1 x Charging Cable 1 x English and Chinese User Manual