BT speaker 551

Box material: Plastic Power supply side lithium battery Waterproof grade: not waterproof Built in battery capacity 2000mAh-4000mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Frequency response range 100HZ-20KHZ Signal to noise ratio ≥ 75dB Number of speakers 2 Effective distance of 10 meters Appearance size 225 * 105 * 105MM Bluetooth version 5.3 Rated power 20 Product net weight 1.2KG Rated voltage 3.7 Additional function card insertion, waterproof, dustproof, anti drop, voice prompt

Box material: Plastic Power supply mode USB Waterproof grade ipx 6 Built in battery capacity 1000mAh-1200mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Applicable scenarios: outdoor lawns, others Frequency response range 100HZ-20KHZ Signal to noise ratio ≥ 70db Number of speakers: 1 Effective distance of 10 meters Appearance size 130 * 125 * 10 Color Knight Black, Chinese Red, Silver Grey, Cherry Blossom Pink, Sky Blue Bluetooth version 5.0 Rated power 5 Product net weight 0.5kg Rated voltage 3.7 Additional function card insertion Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm

Box material ABS Power supply method: Lithium battery Waterproof grade: not waterproof Built in battery capacity 4000mAh-6000mAh (inclusive) Connection method: Bluetooth connection Is there a built-in battery Applicable scenarios: Other Frequency response range 100HZ-20KHZ Signal to noise ratio ≥ 70db Number of speakers 2 Appearance size 213 * 103 * 103 Color: Black, Red, Blue, Camouflage Rated power 30 Rated voltage 5 Additional function card insertion

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, broadcasting system, outdoor lawn Frequency response range 40Hz-20KHz Signal to noise ratio ≥ 70db Number of speakers 2 Effective distance 10 Appearance size 240 * 110 * 110 Colors: Black, Red, navy blue, khaki, military green Bluetooth version 5.3 Rated power 20 Net weight of product 1.35kg Rated voltage 3.7 Additional functions include card insertion, waterproof, recording, lighting, anti drop, voice prompt, call function, and cash broadcast