BT speaker 521

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

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 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 include in car, desktop, fitness, outdoor, home, mobile and portable, karaoke, live streaming, square dancing, outdoor lawn Listing date: Spring 2026 Frequency response range 100HZ-20KHZ Signal to noise ratio ≥ 95dB Number of speakers 2 Effective distance of 10M Exterior dimensions 230 * 116 * 137 Colors: milky white, black, orange, blue Bluetooth version 5.3 Rated power 30 Rated voltage 3.7 Speaker type: Outdoor speaker Additional function card insertion

Box material ABS Power supply method: Lithium battery Waterproof rating IPX6 Built in battery capacity 1200mAh-2000mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Applicable scenarios include in car, desktop, fitness, outdoor, home, mobile and portable, live streaming, outdoor lawn Frequency response range 30Hz-15kHz Signal to noise ratio ≥ 85dB Number of speakers 2 Effective distance 10 Appearance size 223 * 93 * 90 Colors: Black, Red, Blue, Camouflage Bluetooth version 5.3 Rated power 12 Net weight of product 0.7kg Rated voltage 3.7 Additional functions include card insertion, voice prompts, and call functionality