2 to 5 business days
- Brand: Lenovo - Model: HE05 - BT version: 5.0 - Material: metal, silicone, TPE - Transmission distance: 10m (accessible) - Waterproof: IPX5 - Dustproof: IP6X - Battery: 3.7V / 80mAh - 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