Promotional wireless speaker with power bank SOUND 4000 mAh

Elegant promotional wireless speaker with built-in 4000 mAh power bankThe SOUND 4000 mAh wireless speaker combines powerful sound with practical charging features, making it a perfect promotional gift. Made of durable metal, it supports Bluetooth 4.2, micro SD cards, and 3.5 mm audio input. With IPX4 splash resistance, built-in microphone, and up to 15 hours of playtime, it is ideal for both outdoor adventures and everyday use.Technical data:Dimensions: 63 x 131 x 36 mm,Material: Metal,Color: Silver,Packaging: White cardboard box,Gross unit weight: 0.359 kg,Box dimensions: 41 x 38 x 25 cm (50 pcs/carton),Battery capacity: 4000 mAh (lithium-polymer),Output power: 5W,Battery life: up to 15 hours,Bluetooth version: 4.2,Microphone: Yes (hands-free calls),Waterproof: IPX4,Country of origin: China.Make your brand stand out with the SOUND 4000 mAh promotional speaker. Stylish, practical, and perfect for engraving. For logo printing and bulk orders, contact us.