AEDILYS Design Ultra-portable Outdoor Wireless Bluetooth Speaker with Lanyard,hd Voice, IPX4 Waterproof ,TPU Cover Anti-shock with Carabiner and Micro USB Cable Works for All Bluetooth Devices Cellphone Waterproof Case+portable bluetooth speaker, It is compact and light, easily put in your pack or pocket bring extraordinary sound for you Special lithium battery, the speaker has built-in lithium battery, can play 4-5 hours at maximum power, play 8 hours at medium power.(the best sound is at the 90% volume) Bluetooth function can match with your smart phone, pc computer, Notebook, tablet pc, PSP game player etc. make your colorful life Built-in FM radio. Mobile phone handsfree. Easy to answer(conversation) / end a call.(Cellphone Waterproof Case free gift)