You will not need anything for a laptop, with the offer of Speaker + Headphone + Power Bank 1800mAH, with everything you need.
 Advantages
 The length of the wire is a meter and a half, so you can't hear it next to the laptop.
 The power bank will be able to charge your mobile from 2 to 3 times a day.
 The speaker is very loud, you do not need to buy any mold with it.
 Headphones are covered with a layer of fabric that will protect your skin and be soft on it.
 The headphones open 180 degrees and take the shape of the neck and brain.
 the description
 Description of the speaker
 Outputs: - 2 * 1.7 watts.
 Battery: 3 AA.
 Voltage: 5 volts.
 Description for Headphone
 Dimensions: - 40 mm.
 Frequency: 20 Hz.
 Cord length: 1.5 meters.
 Description of power bank
 Battery capacity: 1800 mAh.
 Charging time: 3 to 4 hours.
 Operating time: 8 to 9 hours.
 Preparation time: 3 days.
 Battery type: Lithium-ion rechargeable.
 Cable type: Micro.
 The color is random.
 Package Content
 1 x speaker.
 1 x Headphone.
 1 x Power Bank.