Headphone type: Earbuds Features: JBL Deep Bass Sound, IPX2 waterproof rating, Mono mode listening with either earbud True Wireless (TWS): Yes System: Stereo Connection: Bluetooth Battery charging time: Approximately 2 hours Frequency response: 20Hz - 20KHz Microphone: Yes Suitable for sports activities: Yes Color: Black Speaker diameter: 8 mm Sensitivity: 108dB Impedance: 16 Ω Headphone backlight: No Controls: Music and call control, voice assistant support Bluetooth version: v5.0 Battery life: Up to 5 hours on a single charge; up to 20 hours with the charging case Power supply: Rechargeable battery Other: Additional silicone tips in various sizes (S, M, L) Weight: Earbuds: 2 x 8.7 g, Charging case: 39.3 g