Product Material: Plastic Size: 120*30*60MM Color: Painted Black, Black, Red Battery Capacity: 300mAh Signal-to-Noise Ratio: 75dB Frequency Range: 60Hz-16KHz Package Contents: 1 * Mini Card Bluetooth Speaker Ring 1. Amazing Sound Delivers stunning stereo sound with exceptional clarity and no distortion thanks to the double-precision stereo drivers and proprietary bass radiator. 360 surround sound effect provide stereo sound. The bass port alone boosts the low-end frequencies to hit the beats even harder. 2. Advanced Bluetooth 5.0 Our advanced Bluetooth 5.0 antenna design provides fast connection and extended wireless range. The integrated microphone function ensures clear sound quality. Connecting to devices in seconds can ensure perfect sound quality in an accessible environment without lagging playback. 3. Worry-Free Battery Life Charge in 2 hours with the included cable. When the battery is fully charged, charging will stop automatically. Built-in 300mAh high-efficiency lithium-ion battery can be used for up to 6-8 hours. Wireless portable bluetooth speakers should be a must-have in your life. 4. Compatible with multiple playback modes.Micro card (TF) playback, support MP3, WAV format, and support memory playback. 5. Convenient to CarryMini music box, put the music in your pocket, portable mini bluetooth speaker only 120*60*30mm, little man with big energy, enjoy music anytime, anywhere.