The Koleer S31 Waterproof Wireless Bluetooth Speaker – IPX7, Portable Bluetooth v5.0+EDR, Rugged Design, 5W Power is a robust, portable audio solution designed for music enthusiasts who demand durability and quality sound in any environment. Engineered with Bluetooth v5.0+EDR technology, this speaker ensures a stable, high-speed wireless connection with a 10-meter range, making it perfect for streaming music, podcasts, or calls from smartphones, tablets, or other devices. Boasting an IPX7 waterproof rating, the S31 can withstand submersion in up to 1 meter of water for 30 minutes, ideal for poolside parties, beach trips, or rainy hikes. Powered by a 5W speaker, it delivers clear, balanced audio with a focus on reliability, housed in a rugged design that combines durability with a sleek aesthetic. With support for USB and TF card playback (up to 32GB) and a built-in FM radio, this speaker offers versatile listening options. Its 1200mAh rechargeable battery provides up to 2–5 hours of playtime (depending on volume) and recharges via USB in about 2 hours, ensuring you stay connected on the go.

Key Features

1. Advanced Wireless Connectivity

• Bluetooth v5.0+EDR: Offers enhanced data rate (EDR) for improved sound transmission and a stable connection within a 10-meter range, reducing latency and ensuring seamless pairing.

• Built-In Microphone: Includes a high-sensitivity microphone for hands-free calling, delivering clear audio for phone conversations or virtual meetings.

2. Waterproof and Rugged Design

• IPX7 Waterproof Rating: Fully submersible in water up to 1 meter for 30 minutes, making it resistant to splashes, rain, or accidental drops in water.

• Rugged Construction: Encased in durable ABS plastic with a protective grille, designed to endure outdoor conditions and minor impacts.

3. Versatile Audio Performance

• 5W Power Output: Provides clear and balanced sound suitable for casual listening, with a frequency range of approximately 80Hz–18KHz.

• Multiple Playback Options: Supports USB and TF card (up to 32GB) for offline music playback and features an FM radio with auto-scan for live broadcasts.

• TWS Compatibility: Pair with another S31 speaker (if supported) for a stereo sound experience, enhancing audio for larger spaces.

4. Portable and User-Friendly

• Compact Size: Measuring approximately 160 x 60 x 50 mm and weighing about 300g, it’s lightweight and easy to carry.

• Convenient Lanyard: Includes a detachable lanyard for hands-free portability, allowing you to hang it on a bag, bike, or wrist.

• Intuitive Controls: Features simple buttons for power, play/pause, volume, and mode switching (Bluetooth, FM, USB, TF).

5. Long-Lasting Battery

• 1200mAh Rechargeable Battery: Offers 2–5 hours of playback (depending on volume and usage), ideal for short trips or outdoor activities.

• Fast Charging: Recharges via USB (5V) in approximately 2 hours, ensuring minimal downtime.

6. Wide Range of Applications

• Outdoor Adventures: Perfect for camping, hiking, beach outings, or pool parties due to its waterproof and rugged build.

• Home Use: Enjoy music or radio in the kitchen, bathroom, or garden with its versatile design.

• Travel: Lightweight and rechargeable, it’s an excellent companion for road trips or hotel stays.

• Hands-Free Calls: The built-in microphone supports clear communication for calls or virtual meetings.

Specifications

• Model: Koleer S31

• Bluetooth Version: v5.0+EDR

• Speaker Power: 5W

• Frequency Response: Approximately 80Hz–18KHz

• Transmission Range: Up to 10 meters

• Waterproof Rating: IPX7 (1 meter submersion for 30 minutes)

• Battery Capacity: 1200mAh (rechargeable lithium-ion)

• Playback Time: 2–5 hours (depending on volume)

• Charging Time: Approximately 2 hours

• Charging Port: USB (5V)

• Dimensions: Approximately 160 x 60 x 50 mm

• Weight: Approximately 300g

• Material: ABS plastic

• Supported Inputs: Bluetooth, USB, TF card (up to 32GB), FM radio

• Additional Features: IPX7 waterproof, built-in microphone, lanyard

• What’s in the Box: Koleer S31 Speaker, USB charging cable, lanyard, user manual

Why Choose the Koleer S31 Waterproof Wireless Bluetooth Speaker?

The Koleer S31 stands out with its combination of waterproof IPX7 protection, rugged portability, and reliable Bluetooth v5.0+EDR connectivity. Its 5W power output delivers clear audio for everyday use, while the rugged design ensures it thrives in challenging environments. With versatile playback options, a long-lasting 1200mAh battery, and a lightweight build, it’s the perfect speaker for music lovers who need durability and convenience. Whether you’re by the pool, on a hike, or relaxing at home, the S31 provides exceptional sound and peace of mind.