🔑 Power and connect, all in one sleek keyring!
The Rolling SquareTAU 2 (2nd Gen) is a versatile power bank keyring designed for modern professionals. With a 2000mAh capacity, it provides emergency power for smartphones while featuring a digital business card function via NFC/QR code. Its compact design and universal compatibility with USB-C, Lightning, and Micro USB make it an essential accessory for anyone on the go.
| Item Dimensions L x W x Thickness | 11.5L x 8.5W x 3.5Th centimetres |
| Item Weight | 1.7 Ounces |
| Battery Cell Type | Lithium Ion |
| Colour | Ice Grey |
| Warranty Type | Manufacturer |
| Charging Time | 90 minutes |
| Number of Outlets | 2 |
| Compatible Devices | Apple, Compatible with all devices, Android |
| Portable | Yes |
| Voltage | 3.7 Volts (AC) |
| Power source | Corded Electric |
| Number of Ports | 2 |
| Connector Types | USB-C, Lightning, Micro USB |
| Battery Capacity | 2000 Milliamp Hours |
| Special Features | LED Indicator Lights, Built In Cable, Fast Charging, Pocket Size |
S**S
Handy!!
Great piece of kit,no need to carry seperate leads or charger,will give you around a 25% charge in average phones
N**Y
Tau 2 review
Don't buy. Sooooo slow and will do my standard Samsung to 20 % but takes forever 😴. Just tried it again and phone went up 3 % in 21 mins 🙈. If only it was fast charge. Waste of money, don't buy 🙏
B**M
Small but useful as an EDC
Great size for an EDC,
A**
Handy small power bank
Very handy to have on keys incase you need a little charge to keep you phone from dying. fully charged it gets my iPhone 15 pro max to about 20% battery from 0%.
J**!
Good idea but lacks power
This is currently priced at £29.90. I like the idea behind it, but it lacks power...It only has a 2000amh battery so you will only get about 30% additional charge if using a new phone, so given the price and the size of others there are better options available. It is also quite heavy to keep on a key ring.
C**N
Excellent compact charger
The most compact charger it's possible to find (and i have looked hard). There are slimmer chargers but none as pocket sized. It won't fully charge most modern phones but it will give about 25% which could make all the difference if your phone is running out of charge
T**T
Left behind
I'm not sure I understand what they were trying to achieve when they came up with this? It's a mini power bank which is rather limited in 2024. 2000mAh slow-charge only, for attaching to a keyring? It's small but still likely to be pretty cumbersome on a keyring - especially if there's a car key on it.There's a technology out there that's called USB where the U stands for Universal. Why not use that? No, they've used a less common magnetic connection that needs docking charger instead. Hmmm? Charging at home only then, unless you want to cart the charger around with you.It has an NFC function for sharing information. Ummm, why not just use your phone?? Not sure I understand this extra?Look, it'll charge your phone up by typically over 20% but at the end of the day there are other options that are 5000mAh, maybe a third bigger, support fast charging, can be charged by USB and currently, a third of the price. I know which I would choose to carry with me.
G**R
Super edc charger
A fantastic edc power bank. Super light with cables attached so great for a super light pack. First rate.
Trustpilot
1 week ago
3 weeks ago
