10W Dual Speakers:Experience deep, shocking bass with the 10W dual speakers and 45mm rectangular acoustic engine Bluetooth 5.3 Low-Latency:Enjoy seamless audio-visual sync with Bluetooth 5.3's low-latency feature for uninterrupted entertainment Wireless Speaker10H High Quality Sound:Enjoy 10 hours of uninterrupted, high-quality sound with the M15 Protable Bluetooth Speaker FM Radio & Hands-Free Calling:The M15 Protable Bluetooth Speaker doubles as an FM radio and a hands-free calling device IPX4 Waterproof:The IPX4 rating ensures the speaker is protected against sweat and splashes, perfect for outdoor use Model: M15 Bluetooth Speaker Bluetooth Version: 5.3 Transmission Distance: about 10M Bluetooth Speaker : 10Hours Standby time:80Hours Bluetooth Speaker Charging Time: about 1.5-2Hours Battery: 1200mAh Power:10W Charging Port: Type-C Waterproof: IPX4 Frequency Rangs:210Hz to 20KHz Sensitivity:86.5±3dB Distortion(Max):5% Bluetooth Speaker Dimensions:160x77x43mm Colour: A Black Material:plastic Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * Bluetooth Speaker 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.