Zealot S78 Black bärbar högtalare

Zealot S78 Portable Bluetooth Speaker — 120 W Party Power

The Zealot S78 is built for users who want loud, bass-forward sound without sacrificing battery life. You get a 120 W RMS output from two 120 mm woofers and two 42 mm tweeters, spanning a frequency response from 20 Hz to 20 kHz. The 24,000 mAh battery offers up to 40 hours of playback. Thanks to its IPX6-rated housing, you can use it confidently at the pool or beach. For easy transport, it ships with both a shoulder strap and an integrated handle—perfect for barbecues, camping weekends, or indoor gatherings.

Built-In Power Bank and Customizable EQ

What stands out is the dual-role design: a USB-A output turns the internal battery into a phone charger, so you don’t need a separate power bank. Users can switch between three EQ modes—balanced, bass boost, and treble—to tailor the sound to any environment. RGB lighting around the passive radiators even syncs to your music’s beat for visual flair.

Connectivity and Audio Specifications

Bluetooth 5.2 gives you a stable wireless link with roughly 10 m of range. The speaker also supports playback through a 3.5 mm AUX jack, USB flash drive, or TF card slot. Charging is handled by USB-C, and a second USB-A port supports both media playback and reverse-charging for external devices.

• Power Output: 120 W — fills medium to large rooms without a subwoofer.
• Frequency Range: 20 Hz – 20 kHz.
• Battery Capacity: 24,000 mAh — 40 hours of playback and works as a power bank.
• Bluetooth 5.2 streaming enables a stable link with approximately 10 m of range for your devices.
• Inputs: USB-C, 3.5 mm TRS, TF card, USB-A.

Best Suited for Outdoor Entertainers and Party Hosts

Take this model from a beach cookout to a living-room movie night without hassle. The 4.4 kg weight and included strap make it easy to bring along for campers or pool-party organizers. Bluetooth pairing is quick with iOS and Android, and the IPX6 rating ensures music plays on even during sudden rain. For anyone seeking a portable speaker under €150 with a focus on battery life and bass impact, the S78 stands out as an excellent choice.

ZEALOT — Music and Technology from a Group of Enthusiasts

ZEALOT is a Bluetooth speaker brand founded by music enthusiasts committed to combining sound quality with modern design. The S78 tops their standard range as the go-to boombox for music and party lovers.