Will it charge when I put on a phone case?

Please make sure the case is not thicker than 4mm. But objects such as magnetic / metal attachments, keys, or credit cards will interfere with charging.

Why is the wireless charging slower than a traditional wired charger?

Wireless charging uses electromagnetic fields to transmit energy in the air, and there will be energy loss in the electromagnetic conversion process.

TOZO T9S True Wireless Earbuds

Environmental Noise Cancellation&Clear Calling：TOZO T9S Earbuds feature an 8.0mm diameter speaker with vivid clear treble,2 microphones deliver clearer calls than other truly wireless earbuds, rebuilding your immersive sound world.
Bluetooth 5.3technology：T9S Support the advanced Bluetooth 5.3 technology. More stable connection and more powerful sound quality than ever before.With 3D immersive stereo surround sound, and high bass balance.More strong signal and more smooth connection when talking and listening to music, TOZO T9 supports HSP, HFP, A2DP, and AVRCP, which greatly improve the transmission speed and provide you with a low-latency listening experience.
Long Endurance：Up to 8 hours listening time(50% volume) and up to 24 hours with charging case. It also supports fast charging for up to 1.5 hours with Wireless charging. Such excellent endurance can meet your daily use.
IPX7 Waterproof：T9S is IPX7 waterproof and sweat resistant. Whether it resists heavy rain or sweat, T9S is equally excellent. It can make you have no worries about daily going out and exercising.

Environmental Noise Cancellation&Clear Calling：TOZO T9S Earbuds feature an 8.0mm diameter speaker with vivid clear treble,2 microphones deliver clearer calls than other truly wireless earbuds, rebuilding your immersive sound world.
Bluetooth 5.3technology：T9S Support the advanced Bluetooth 5.3 technology. More stable connection and more powerful sound quality than ever before.With 3D immersive stereo surround sound, and high bass balance.More strong signal and more smooth connection when talking and listening to music, TOZO T9 supports HSP, HFP, A2DP, and AVRCP, which greatly improve the transmission speed and provide you with a low-latency listening experience.
Long Endurance：Up to 8 hours listening time(50% volume) and up to 24 hours with charging case. It also supports fast charging for up to 1.5 hours with Wireless charging. Such excellent endurance can meet your daily use.
IPX7 Waterproof：T9S is IPX7 waterproof and sweat resistant. Whether it resists heavy rain or sweat, T9S is equally excellent. It can make you have no worries about daily going out and exercising.

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TOZO T9S True Wireless Earbuds

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