The EWA (Enhanced Wireless Audio) A150 Bluetooth Speaker is small but powerful, tiny body loud voice. EWA˜portable wireless metal bluetooth speaker with passive subwoofer, enhanced impactive bass,˜so you can hear something unbelievable Specifications: ˜˜Colors:blue gold rose gold silver black ˜˜Battery: 600mA ˜˜RMS: 5W ˜˜Frequency: 100-18KHZ ˜˜SNR: S/N85DB ˜˜Size: ?2.62*2.49(in) ˜˜Playing time: 5 hours ˜˜Charge time: 2 hours ˜˜Bluetooth frequency: 2.4-2.48GHZ ˜˜Bluetooth Protocols: HS/HF, A2DP, AVRCP, OPP Notifications: ˜˜EWA ˜A150 will shut down automatically without any ˜˜˜˜˜˜˜˜˜˜˜˜operates in 5 minutes ˜˜EWA ˜A150 should turn into bluetooth paring mode in case on non Micro SD card inserted, and it will search and pair with previous devices automatically. ˜˜Next/Prev. Button is not available under Aux-in mode ˜˜Do not use the speaker with water around it ˜˜Please clean the speaker only use dry towels ˜˜Do not put the speaker close to open-flames such as lighted candles ˜˜It is a duty to protect the environment while you are considering drop the speaker, especially the battery inside ˜˜The speaker could only use in mild climate conditions The EWA(Enhanced Wireless Audio) A150 Bluetooth Speaker is small but powerful, tiny body loud voice. EWA˜portable wireless metal bluetooth speaker with passive subwoofer, enhanced impactive bass,˜so you can hear something unbelievable Specifications: ˜˜Colors:blue gold rose gold silver black ˜˜Battery: 600mA ˜˜RMS: 5W ˜˜Frequency: 100-18KHZ ˜˜SNR: S/N85DB ˜˜Size: ?2.62*2.49(in) ˜˜Playing time: 5 hours ˜˜Charge time: 2 hours ˜˜Bluetooth frequency: 2.4-2.48GHZ ˜˜Bluetooth Protocols: HS/HF, A2DP, AVRCP, OPP Notifications: ˜˜EWA ˜A150 will shut down automatically without any ˜˜˜˜˜˜˜˜˜˜˜˜operates in 5 minutes ˜˜EWA ˜A150 should turn into bluetooth paring mode in case on non Micro SD card inserted, and it will search and pair with previous devices automatically. ˜˜Next/Prev. Button is not available under Aux-in mode ˜˜Do not use the speaker with water around it ˜˜Please clean the speaker only use dry towels ˜˜Do not put the speaker close to open-flames such as lighted candles ˜˜It is a duty to protect the environment while you are considering drop the speaker, especially the battery inside ˜˜The speaker could only use in mild climate conditions