Features: Support phone/Laptop/Tablet PC Suppory TF card(Mini micro card) Modular ' Buddy-jack' design: connect a row of mini speakers to get jaw-dropping audio performance Expanded Bxs drives a fuller, richer low-end response New, larger 45mm driver delivers precise highs for superb sound Specifications: Support A2DP, AVRCP, headset, handsfree profile Blurtooth version: V2.1 Working range: up to 10m Working time: 5 hours Dimension: 60x 60x 50mm Net weight: 230g Loudspeaker output: 3w Frequency response: 280HZ-16KHz Battery voltage: 520mAh Battery charge time: 2 hours Package contains: 1 x Mini Bluetooth Speaker 1 x USB Charging Port 1 x User Manual