With bluetooth function / Hands free . Bluetooth 3.0 wireless audio transmission Built in Microphone With phone hand free calling Very suitable for the gifts Accessory for tablet pc / laptop / computer / mobile phone and other bluetooth device Bluetooth remote control self-potraits / selfie Bluetooth Version: 3.0+EDR Wireless Range: 10 meters (equal to 33 feet) Type: Active Built-in microphone: YES Handsfree: YES Speaker Dimension: Φ34mm, 4Ω3W Power: Built-in rechargeable 300mAh lithium battery. Frequency Response: 150HZ-18KHZ Input Power: DC 5V S/N Ratio: ≥85dB Output Power: 3W Interface: Micro USB/TF card slot Size: 82*48*22mm Weight: 0.4kg Charging Port: Micro USB Accessories: 1 X nby-005 Mini speaker 1 X charge cable 1 X lanyard Terms and condition: Product is brand new! It is already at its lowest price! No negotiation thank you! Once sold no refund no exchange! You can check the item before purchase! Meet up: Lavender mrt/Farrer park mrt/ Blk 29 Kelantan road. Mailing provided with addtional charges!