Lontor Bluetooth Speaker CTL-BS004 Key Features: Bluetooth Version: 5.0 Output Power: 16W Battery: 3.6V / 2500mAh Playtime: 12H (Vol 50%) Charging Time: 3H Frequency Response: 20Hz-20KHz Input Voltage: 5V/1A Charging Port: Type-C Features & Compatibility Lontor Bluetooth Speaker CTL-BS004 Lontor Bluetooth Speaker CTL-BS004 is a wireless connectivity that is paired (pre-associated) with one or more smartphones, tablets, iPods or computers. Available in all sizes, including replaceable battery and rechargeable models, as well as wall-powered units, the Bluetooth speaker receives digital audio streams from the host device, which are typically compressed. It then decompresses, decodes and amplifies the audio through the built-in speakers Lontor Bluetooth Speaker CTL-BS004 makes this speaker ready for just about anything. Hang it from your backpack or on your wrist or even from a parasol when you’re out in the sun. The downwards-facing speaker will create a waterfall of music that engulfs you in the rhythm.