Highlights: Brand: Lenovo Model: HE05 BT version: 5.0 Material: metal, silicone, TPE Transmission distance: 10m (accessible) Waterproof: IPX5 Dustproof: IP6X Battery: 3.7V / 105mAh Working time: about 8 hours Standby time: about 120 hours Charging time: about 2 hours Color: black, Horn diameter: 10mm Speaker sensitivity: 98dB Frequency response range: 20-20kHz Product Description: Equipped with 8mm drive to deliver stunning sound for an enjoyable listening experience. Built-in large capacity battery for up to 12 hours working time and 7 days standby time. Works with Bluetooth 5.0 chips to ensure stable and fast connection. IPX5 waterproof rate can keep the rain and sweat far away Ergonomically designed earphones for long-time comfort. CVC noise-canceling microphone Magnetic design for easy store What is in the box: 1 x Wireless Earphones Weight: 0.3 SKU: 210418103638