1、Built-in rechargeable battery: Built-in 4000mAh rechargeable lithium ion battery,support long lighting and music playing time,USB port to charge other devices as mobile phones,tablets,mucis players,etc. 2、Artful Appearance: Updated patio umbrella light comes with 48 LEDs and USB interface.LEDs support white night light and RGB color changing party light mode.Brighter and more convenient.It is much better than other chargeable umbrella lights. 3、Rechargeable Lights With USB Interface: Power Bank inserted and well shielded by quality thick Silver ABS shell.It can be fully charged only in 4 hours. 4、Bluetooth Speaker:It is a Bluetooth 0 speaker compatible for most cell phones,tables and computers.you can play music from your compatible mobile devices. 5、Easy to install: This outdoor light is more portable than ordinary lights in the store. Wireless design, no tools required. You can use the built-in self-adjusting power clip to easily grab the umbrella, or you can hang it with two hooks. It is easy to use the built-in self-adjusting strong clip to clamp the umbrella (clip diameter: 0.8in to 2in), suitable for the market Most umbrellas. 6、Portable and durable: Adopts high-quality plastic shell, with strong and lightweight features, ideal for outdoor activities, like camping, beach barbecue, playing cards, and garden parties, etc. 1x Umbrella light 1x Manual 1x USB cable Product size: about 20 x 4.4 cm Light source: 48 LEDs Luminous flux: 3.75lm * 64 = 240lm Clamp diameter: 2cm to 5.2cm Bluetooth speaker Bluetooth version: 3.0 Bluetooth configuration files: HSP, HFP, A2DP, AVRCP Bluetooth working distance: 10m ( 32.8ft) Power: 3w x 2 Frequency response range: 20Hz-20kHz Working hours: playing music (6 hours), playing music and lights (3 hours) Power bank Charging input: DC 5V Output: DC5V 1A Charging current: 1A Built-in battery: 3.7V 4000mAh Charging time: about 4 hours