Casti Lindy LE400W Wireless In-Ear, negre Technical details Specifications Design: In-ear Driver: 6mm Active Noise Cancellation: - Bluetooth Standard: 5 Bluetooth Chipset: PAU1603 Battery Type: Lithium Battery Life: LE400W Up to 4 hours of listening time with a single charge LE400W with Charging Case Up to 16 Hours of listening time Impedance: 16Ω±10% Sensitivity: 95±3dBA,3mW Frequency Response: 20 - 20000Hz Nominal THD: