Features: The unique and practical design, ultra-thin mini size, can be easily put into your wallet and pocket, making it easy to carry and record important sounds in your life. Voice-controlled recording, sound start recording, silent stop recording, save memory and electricity, efficient management. One-click recording saves, boot recording, shutdown save, easy to operate. 8GB/16GB/32GB memory optional, can provide 96h / 192h / 384h recording capacity, support MP3 playback and recording playback. Built-in high-capacity polymer lithium battery, which can record continuously for about 20 hours and play continuously for about 8 hours. Specification: Model: Q61 Material: Zinc Alloy Power Supply: DC 5V 1A Battery: 3.7V 110mAh Record Format: WAV Play Format: MP3/WAV/WMA Recording Bit Rate: 192KBPS Charge Time: 1 hour Save Time: 96/192/384 hours Memory: 8G,16G,32G(Optional) Color: Black Item Size: approx.3.9*3*0.6cm / 1.54*1.18*0.24in Package Size: approx. 14.5*9*4.5cm / 5.71*3.54*1.77in Package Weight: approx. 127g / 4.48oz Package List: 1 * Voice Recorder 1 * TF Card 1 * USB Cable 1 * 3.5mm Earphone 1 * User Manual