Bluetooth 5.3 compatible, IPX4 waterproof wireless earphones. - Brand: Tama Electric Industrial Co., Ltd. - Model: ABS78K - Bluetooth Version: 5.3 - Accessories: Bluetooth earphones, charging cradle, ear pads (S, M, L), USB charging cable (approx. 30cm), instruction manual, easy pairing connection guide, connection method to a computer - Waterproof Standard: IPX4 - Charging Time: Approximately 2 hours - Usage Time: Talk time up to approximately 4 hours, music playback up to approximately 6 hours Thank you for viewing. I purchased these on the spur of the moment while out, so I've only used them for about 1-2 hours. (Cleaned & disinfected with alcohol) The purchase price was 3641 yen (including tax). There seems to be a warranty service, so I will include the receipt. Also, I will include a Can Do earphone (image 4) that I also bought while out, but couldn't use because the plug didn't fit. Please consider it as a bonus. Shipping method will be Yu-Packet Plus. Thank you very much.