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Inckudes :

Bungee (attached to product)
USB Cable
Quick Start Guide ( printed inside the box)
Box

Top highlights
Surprisingly Bigger 360-Degree Sound: The WONDERBOOM 4 portable waterproof Bluetooth speaker features bigger 360-degree sound in a petite package; boosted sound for up to 14 hours of playtime
Outdoor Boost and Podcast Mode: Engineered for full stereo sound; tap the Outdoor Boost button for outdoor environments; use the new Podcast Mode to make vocals sound rich and clear
14 Hours of Boom: With a battery that lasts throughout the day, this waterproof portable speaker booms on with up to 14 hours of playtime, so you can soak up every moment
Waterproof, Dustproof, and Floatable: IP67-rated this Bluetooth waterproof speaker can be submerged in 1m of water for 30 min; protected from dust; ideal for the pool, beach, or shower
Double Up for Stereo: Pair up two WONDERBOOM 4 portable Bluetooth speakers for even bigger sound; press once to double up; press again for true stereo from both speakers, with left and right channels
Durable Wireless Speaker With Range: 40 metres ( 131 feet) of range so you’re free to roam; plus it’s dirt-resistant and drop-proof (1) with a handy loop so you can take it with you
Made With Recycled Plastic: Plastic parts in the WONDERBOOM 4 wireless Bluetooth speaker include a minimum of 31% post-consumer recycled plastic by weight
(1) Drop-tested from 1.5 m (5 ft)

Technical Specifications

Power

Rechargeable lithium-ion battery for up to 14 hours of battery life between type-c USB charges. ?
360° Sound
Maximum sound level: 86 dBC (normal) and 87dBC (outdoor)
Drivers: two 1.57 in (40 mm) active drivers and two 1.81 x 2.57 in (46.1 x 65.2 mm) passive radiators
Wireless Capabilities
131 feet (40 meter) range ?
Connect up to two source devices at the same time.
Wirelessly play (stream) to 2 WONDERBOOM 4 speakers from one source
Compatibility
For audio playback : smartphones, tablets and other devices that support Bluetooth [Advanced Audio Distribution Profile (A2DP)]
Sustainability
Minimum 31% Post-Consumer Recycled Content of the Total Plastic Components. Excludes packaging.