Description: Feature: 1. Super compatible, small speakers are compatible with most wirele devices, mobile phones and tablets. 2. Long-distance transmiion, you are not afraid of being unable to connect, you can listen to wirele music within 10 meters. Built-in 600M/AH capacity battery, can play continuously for 3 to 6 hours after fully charged. 3. Listen to wirele unlimited expansion. HiFi surround sound effects immerse you in the world of music. 4. High-definition sound quality, light and portable, 5. One key to take pictures, you can take pictures through the speaker remote control mobile phone, anytime, anywhere without aistant Specifications: Parameter: Bluetooth version: V4.0 Bluetooth distance: 10m Frequency response range: 40Hz-20KHz Power: 3W Speaker: 40mm43W Sensitivity: 80db2db Signal to noise ratio: 70dB Charging voltage: DC5V Battery capacity: 600MAH Play time: 3-6 hours Charging time: 3-4 hours Box material: plastic Functions: taking pictures, voice prompts, call functions Colour: Black Package Included: 1*speaker 1*charging cable 1*instruction Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a meage before you give the bad feedback, if the products have some problems. Thanks for your understandings. .