M1 TWS Aluminum Alloy Mini Bluetooth Speaker RedFunny Points:(1) The wiress speaker is so tiny, easy to take:39*37.5Mm size, much smaller than your hand 120g weight, much lighter than mobile phoneChic and cute color as a decoration, it's not a bad choice if you put it at your bag, bike etc(2) Interesting mixed choice: How to do if you want to use 1 pc black and 1pc red color speaker at the same time?It doesn't matter. You could chose 1 black color and 1 red color speaker, connect them through interconnection function.Also, you could use one by one alone.How funny it is Fresh coloful outdoor mini speaker, portable device for leisure, sport, workBluetooth V5.0, fast data tranfer speed in 10-15mMultifunction: On/Off; Play/Pause; Volume+/-; Music+/-Interconnection function make 2 speakers to connect one mobile phone at the same timeSpecifications:Bluetooth chip: JLBluetooth version: 4.2Signal noise ratio: 70dbRated power : 2W Bluetooth range: 10 metersRadio frequency: 90Hz20KHzSpeaker size: 20mmDegree of distortion: 1%Battery capacity: 320mAhCharging voltage: DC5VProduct weight: 120gProduct size: 39*39*37.5mmProduct Material: Metal+ABS