BT speaker 521

Box material ABS Power supply mode USB Waterproof rating IPX6 Built in battery capacity 2000mAh-4000mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Suitable for mobile and portable scenarios, outdoor lawns Frequency response range 20Hz-20KHz Signal to noise ratio ≥ 95dB Number of speakers 2 Effective distance of 10M Appearance size 100 * 100 * 220 Colors: Black, Blue, Red, Khaki, Camouflage Bluetooth version 5.3 Rated power 20W Net weight of product 1.04KG Rated voltage 3.7V Additional waterproof features

Box material: Plastic Power supply method: Lithium battery Waterproof grade: not waterproof Built in battery capacity 2000mAh-4000mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Applicable scenarios: In car, desktop, outdoor, home, mobile and portable Frequency response range 100HZ-20KHZ Signal to noise ratio ≥ 70db Number of speakers 2 Effective distance of 10 meters Appearance size 230 * 94 * 100 Colors: Black, Red, Blue, Military Green Bluetooth version 5.3 Rated power 20 Rated voltage 7.2

Box material ABS Power Supply Type-C Waterproof grade ipx 6 Built in battery capacity 2000mAh-4000mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Applicable scenarios include desktop, fitness, outdoor, home, mobile and portable, outdoor lawn, and others Listing time: Summer of 2026 Frequency response range 100HZ-20KHZ Signal to noise ratio ≥ 70db Number of speakers 2 Effective distance of 15 meters Exterior dimensions 249 * 110 * 138 Colors: Black, Blue, Camouflage, Graffiti Bluetooth version 5.3 Rated power 40 Product net weight 1200 Rated voltage 3.7 Speaker type: Outdoor speaker Additional functions include card insertion, FM radio, RGB lighting effects, TWS pairing

Rated power: 5W Battery capacity: 400mAh Signal-to-noise ratio: 285dB Bluetooth version 5.0 Battery type: Polymer battery Frequency response: 60HZ-120KHZ