Like an orchestra in a box, this Wood Accented Bluetooth Speaker has TWS technology that allows you to pair two separate speakers to your phone and play stereo music. Experience the enhanced sound with this set of wireless speakers, pre-packaged together inside a premium printable box. -Prop 65 certified 1. Bluetooth: V4.2; 2. Speaker: 4W; 3. Battery: Rechargeable 400 mAh; 4. Playback Time: Up to 3.5 hours; 5. Working Range: 33ft; 6. True wireless stereo--TWS Function;