Smartphone-compatible headphones: Get a pair of smartphone compatible Bluetooth headphones. Personalised Charging case: With an intelligent charging case that is engraved with a name/quote of your choice (max 15 characters). Connect via bluetooth: Wireless technology makes them easy to connect via Bluetooth (5.0 and above). Long-Lasting: Lasts up to four hours, with 1-2 hour charging time. Automatic On/off: Turns on and connects automatically once removed from the case. Flexible, light weight and comfortable! | Personalised Smartphone-Compatible Wireless Bluetooth Earbuds | Wowcher