Upgraded CW Morse Code Decoder Finished+Case+Button Kit with Digital LCD CW Trainer Morse Code Decod Features: Light weight, small size, easy to carry. The remote control is made of ABS, which is fireproof and durable. Bluetooth 4.0, audio and video synchronization, stable mission. Built-in lithium battery is rechargeable and reusable. Multi-function buttons make the operation more convenient. The lanyard hole design is convenient and practical. The remote control is used for video likes, taking photos, turning e-book, etc. Specifications: Material: ABS Bluetooth version: Bluetooth 4.0 Effective distance: 10-15 m Battery capacity: 250mAh Charging time: 1-2h Frequency: 2.4Hz-2.4835GHz Function: Video likes, taking photos, turning e-book, etc Support system: IOS, Android Size: 70 x 35 x 11mm Color: B: White / A: Black Package Contents: 1* Multi-function selfie remote control 1* Charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.