53g Ultra-light Small and Clip On Design:M3 Bluetooth Speaker features improved 5x stronger clip for ultimate durability. Outdoor Speakers easy open be clipped anywhere. It's good for working/running/biking/hiking. Upgraded Bluetooth 5.3 and Enhanced :M3 Portable Speaker equipped with bluetooth 5.3, 0.1s low-latency with up to 90% faster transmission speeds than before. M3 bluetooth speakers wireless use N52 powerful driver, increased by 85% and 50% volume. Can be heard clearly outdoors. Up to 15H Long :M3 Mini Speaker provide 15H all day and Type-C fast charging. Charge for 10 minutes for 2 hours of use. IP67 Waterproof:M3 Waterproof Speaker utilize the latest IP67 nano-coating technology, which protects the internal components from liquids. Speaker can be used on the beach, and it's also a great shower speaker. Easy Controls Button:The Small Portable features big sized multi-function buttons that are easy to use use with gloves on. Adjust the volume, switch tracks, answer or hang up a call effortlessly, ensuring you can control your music without interrupting your workflow. Specifications: Connection: Bluetooth Frequency Response: 100Hz-20kHz Signal-to-Noise Ratio: ≥95dB Effective Distance: 15m Material: Plastic Waterproof Rating: IPx3 Built-in Battery Capacity: 500mAh-800mAh Rated Power: 5V Rated Voltage: 4.2V Color: Black Package Contents: 1*Bluetooth speaker 1*data cable 1*instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.