Efanr Universal Wired Keyboard Flip Holster Case Cover for Samsung Galaxy Note 5 4 2 S7 S6 S4 S3 HTC M9 M8 One Plus One and Other 4.2''-6.5''Micro USB Andriod Mobile Cell Phones with OTG (Red) Compatible model: For 4.2''-6.5'' Android phone With OTG. Compatible with: Xiaomi M2 M2S M3 M4 M4C M4i NOTE, Redmi 1S 2 NOTE NOTE2 ect. For HTC M9 M8 M8 ONEX ONEmini Butterfly ButterflyS Desire series ect. For Huawei Mate7 P8 P7 P6 honor6 honor6 plus ect. For Samsung NOTE5/ NOTE4/ NOTE3/ S6/S7 S6edge/S7edge/S6edge plus/ i9600 /A9000 /A7000 /A8000 /A5000 ect. Material: PU Leather+PC. Connector: Micro USB. Type: Flip Case. Style: Keyboard Holster. Function: Communication. Size:225*140*30mm. Keyboard type: QWER Write Keybord. Conection: Micro USB jack. Material: PU Leather. Unique accessories for andriod phone. It's easy to insert and remove, can change the bukle to fit for your cellphone in 4.2''-6.5''. Design to fit for your andriod phone with OTG function(Please ensure that your cellphone own this function before you order). Let your typing more convenient and make your hand free to community to other with video. For testing, this keyboard case perfect fit for most andriod phone in 4.2''-6.5'' with OTG.