This waterproof bluetooth speaker is perfect for your next trade show, giveaway or door prize addition! The carabiner can help free your hands by hook the speaker on the keychain, or the backpack, make it easy to enjoy music when you do sports like hiking, camping, cycling or more outdoor events. Also includes microphone for those important conference calls from the comfort of your shower. Loud speaker output is 3W with a charging input of DC 5V. Normal charging time is 3 hours for a maximum of 10 hours playback time.Your LOgo is welcome