In Africa we found two (sometimes more) different types of wall sockets. These worked well in Kenya, but in South Africa and Botswana the 3 prong plugs were cylindrical instead of flat like the ones on these devices. Fortunately, the lodgings that we stayed at we able to provide adapters. Also note that in the more modern parts of Africa (e.g. Cape Town upscale hotels) USB jacks are built in to the walls. Consider buying a device that has several plug adaptor configurations to be confident that you have a converter that will work in the most locations.
Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V To 1.25-37V DC 36V To 24V To 12V To 5V Volt Power Supply Module With LED Voltmeter Display Compatible With Car Motor Buck
16 Review
VINTAR EU To US Plug Adapter 3-Pack For Easy Travel: Europe To USA Converter For Spain, France, And More, Compatible With Type C/E/F Plugs - European To US Power Adapter Solution
11 Review
Kohree 36V To 12V DC/DC Converter Regulator - 10A 120W Golf Cart Voltage Reducer
17 Review
4-Pack Unidapt US Plug Adapters - Convert EU, Europe, Japan, And Canada To American Power Outlets - Travel Plug Adapter For USA - Wall Plugs For Improved Accessibility And Convenience
11 Review
Neoteck Portable 3.5Mm Headphone Amplifier With Bluetooth 5.0 Receiver, Two-Stage Gain Switch, 16-150 Ohm HiFi Earphone Amp, Aluminum Matte Surface
34 Review
Experience Superior Sound Quality With SMSL Audio SAP-8 Headphone Amplifier In Black/Silver/Gold
5 Review
Denon AVR-2113CI Networking Home Theater Receiver: AirPlay, Powered Zone 2 | Discontinued by Manufacturer
9 Review
Premium Harman Kardon AVR-154 Home Theater Receiver - Discontinued by Manufacturer
11 Review