Portable Bluetooth Speaker with Carabiner includes the following features :

• Bluetooth function
• Outdoor sport speaker
• Solid mobile bluetooth stereo
• Shock-proof and dust-proof
• IPx4 Waterproof
• Built in lithium battery: 400mAh
• Battery voltage: 3.7-4.2V
• Rated impedance: 4Ω
• Working distance: 10 m
• Mic Sensitivity:  400mV
• Frequency response: 50Hz-20KHz
• Signal & noise ratio: ≥88dB
• Working voltage: DC 5V
• Support 3.5mm AUX in, TF card, microphone
• Voice prompt function
• Carabiner included for easy carrying
• USB cable included
• Available in various colors

Material :

• Rubberized TPR plastic housing
• Aluminum alloy carabiner

Size closed :

• Length of 10.2 cm x Width of 9 cm x Thickness of 4.7 cm