Hidden recording device in the form of a USB flash drive

Hidden recording device in the form of a USB flash drive. The device is lightweight and small, made of aluminum and plastic. Memory capacity: 8 GB. 8 GB = 150 hours of recording in memory. Automatic save, recordings are saved instantly. It records without making sound or light. Charging time: 1.5 hours. Recording duration: 13-15 continuous hours. Digital recordings in Wav format. Approximate recording distance: 25 meters. Rechargeable lithium-ion battery.