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Highlights Bidirectional 4-mic array, precise call pick-up, deep environmental noise cancellation dual-mic ENC call noise reduction Up to 21 hours of total listening time, up to 6 hours of listening time with one charge 21h long battery life BT 5.3 flagship chip, significantly improved anti-interference capability, fast and continuous connection BT 5.3 chip 13Mm titanium diaphragm dynamic speaker with lightweight and large diameter, delivering powerful bass, clear treble and lossless audio 13mm large dynamic speaker, delivering lossless sound IPX4 waterproof, easily defend against splash, sweat and rain IPX4 water and sweat resistant Overview Model: JR-TL11 Type: half in-ear BT version: V5.3 Audio decoding: AAC/SBC Supported protocols: HSP/HFP/A2DP/AVRCP Speaker sensitivity: 100±3dB Frequency response range: 20Hz-20kHz The battery capacity of the earphones: 35mAh The battery capacity of the charging case: 240mAh Speaker impedance: 32Ω Rated power: 3mW Speaker: Φ13mm Music time: 6h (70% volume) Talk time: 4h (70% volume) Standby time (connected): about 48h Input: DC 5V/1A Charging input port: Type-C Cycle counts: about 2.5 times Charging time of earphones: about 1.5h Recharging time of case: about 1.5h Waterproof rating: IPX4 Case size: 50.0*50.4*23.0mm Earphone size: 30.0*16.5*17.1mm Material: ABS Net weight: 35g