Features: WTV020SD voice module offers audios playbacks with 3V 5.5V operation, 1GB card support(Card NOT Include), and automatic recognition of multiple audios format including AD4 files. Features 16bit PWM output for direct 0.5W/8Ω speaker drive, supporting 6KHz 36KHz sampling rates to ensure high quality sound reproduction for game accessories and electronic projects. Ideal for electronics developers, DIY enthusiasts, and gaming accessory creators needing reliable voice integration in robots, toys, or security systems. Perfect for enhancing machines, appliances, and devices with customizable voice prompts or background music through its card module compatibility. Engineered with plastic housing, this multifunctional voice chip delivers audios solution across robotics, alarm systems, and gaming setups. Specifications: Material: Plastic Working Voltage: 3-5.5V Support 6KHz-36KHz Sampling Rate AD4 Audios File Size: About. 39.47x20.4mm/1.55x0.8in Package Includes: 1 Set Voice Module note: Card NOT Include Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.